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                                                                   EXHIBIT 10.27

THE SECURITIES REPRESENTED HEREBY HAVE BEEN ACQUIRED FOR INVESTMENT AND HAVE NOT
BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED. THE SECURITIES MAY
NOT BE SOLD OR TRANSFERRED IN THE ABSENCE OF SUCH REGISTRATION OR AN EXEMPTION
THEREFROM UNDER SAID ACT. THE EXERCISE OF THIS WARRANT IS SUBJECT TO COMPLIANCE
WITH APPLICABLE FEDERAL AND STATE SECURITIES LAWS.

                     SATURN ELECTRONICS & ENGINEERING, INC.

                       WARRANT TO PURCHASE 495,688 SHARES

                        OF CLASS B NONVOTING COMMON STOCK

         THIS CERTIFIES THAT, for value received, Motorola, Inc. (the "Holder")
is entitled to subscribe for and purchase 495,688 shares of the fully paid and
nonassessable Class B Nonvoting Common Stock (as adjusted pursuant to Section 2
hereof, the "Shares") of Saturn Electronics & Engineering, Inc., a Michigan
corporation (the "Company"), at a price per share of Common Stock (the "Warrant
Price") equal to the price at which the Common Stock of the Company is offered
to the public in the Company's initial public offering multiplied by a factor
equal to 0.90; provided, however, that if the Company's initial public offering
fails to occur for any reason prior to December 31, 2000, then the Warrant Price
shall be equal to $50.43.

         1.   Term. Subject to Section 5 below, the purchase right represented
by this Warrant is exercisable, in whole or in part, at any time and from time
to time, from the date that is four (4) years after the date of this Warrant
through the date that is five (5) years after the date of this Warrant.

         2.   Adjustment of Number of Shares and Warrant Price. The number of
Shares issuable upon the exercise of this Warrant and the price at which such
Shares may be purchased shall be subject to adjustment from time to time as
described in this Section 2, and the Company agrees to provide notice upon the
happening of certain events as follows:

              (a)   Reclassification, etc. If the Company at any time shall, by
subdivision, combination or reclassification of securities, or any consolidation
of the Company with or merger of the Company with or into any other person, or
otherwise, change any of the securities to which purchase rights under this
Warrant exist into the same or a different number of securities of any class or
classes, this Warrant shall thereafter be to acquire such number and kind of
securities as would have been issuable as the result of such change with respect
to the securities which were subject to the purchase rights under this Warrant
immediately prior to such subdivision, combination, reclassification, or any
consolidation of the Company with or merger of the Company with or into any
other person, or other change. If shares of the class of the Company's stock for
which this Warrant is being exercised are subdivided or combined into a greater
or smaller number of shares of stock, the Warrant Price shall be proportionately
reduced in case of subdivision of shares or proportionately increased in the
case of combination of shares, in both cases by the ratio which the total number
of shares of such class of stock to be outstanding immediately after such event
bears to the total number of shares of such class of stock outstanding
immediately prior to such event.

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              (b)   Adjustment for Dividends in Stock. In case at any time or
from time to time on or after the date hereof the holders of the Common Stock of
the Company (or any shares of stock or other securities at the time receivable
upon the exercise of this Warrant) shall have received, or, on or after the
record date fixed for the determination of eligible shareholders, shall have
become entitled to receive, without payment therefor, other or additional stock
of the Company by way of dividend, then and in each case, the Holder shall, upon
the exercise hereof, be entitled to receive, in addition to the number of Shares
receivable thereupon, and without payment of any additional consideration
therefor, the amount of such other or additional stock of the Company which such
Holder would hold on the date of such exercise had it been the holder of record
of such Shares on the date hereof and had thereafter, during the period from the
date hereof to and including the date of such exercise, retained such shares
and/or all other additional stock receivable by it as aforesaid during such
period, giving effect to all adjustments called for during such period by
paragraphs (a) and (b) of this Section 2.

              (c)   Certificate of Adjustment. Whenever the Warrant Price or
number or type of securities issuable upon exercise of this Warrant is adjusted,
as herein provided, the Company shall promptly deliver to the record holder of
this Warrant a certificate of an officer of the Company setting forth the nature
of such adjustment and a brief statement of the facts requiring such adjustment.

         3.   No Shareholder Rights. This Warrant, by itself as distinguished
from the Shares purchasable hereunder, shall not entitle the Holder to any of
the rights of a shareholder of the Company.

         4.   Authorization and Reservation of Stock. The Company will reserve
from its authorized and unissued Nonvoting Common Stock a sufficient number of
shares to provide for the issuance of the Shares upon the exercise of this
Warrant. Issuance of this Warrant shall constitute full authority to the
Company's officers who are charged with the duty of executing stock certificates
to execute and issue the necessary certificates for the Shares upon the exercise
of this Warrant and all such Shares that are issued upon the exercise of this
Warrant will, upon issuance, be validly issued, fully paid and nonassessable,
and free from all taxes, liens, security interests, charges, and other
encumbrances imposed by or through the Company with respect to the issuance
thereof.

         5.   Exercise of Warrant; Net Exercise.

              (a)   Exercise of Warrant. Subject to compliance with applicable
federal and state securities laws and subject to sections 5(e) and 5(f) below,
this Warrant may be exercised in whole or in part (but in no event with respect
to less than 10,000 of the Shares) by the Holder beginning on the date that is
four (4) years after the date of this Warrant and ending on the date that is
five (5) years after the date of this Warrant. Any exercise shall be made by the
surrender of this Warrant, together with the Notice of Exercise and Investment
Suitability and Representation Statement attached hereto as Exhibits A and B,
respectively, accompanied by payment in full (if required) of the Warrant Price
in cash or by check with respect to the Shares being purchased. This Warrant
shall be deemed to have been exercised immediately prior to the close of
business on the

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date of its surrender for exercise as provided above, and the person entitled to
receive the Shares issuable upon such exercise shall be treated for all purposes
as the holder of such Shares of record as of the close of business on such date.
As promptly as practicable after such date, the Company shall issue and deliver
to the person or persons entitled to receive the same a certificate or
certificates for the number of full shares of Common Stock issuable upon such
exercise. Upon any partial exercise of this Warrant, the Company will issue to
the Holder a new warrant for the number of the Shares as to which this Warrant
was not exercised.

              (b)   Net Exercise. In lieu of exercising this Warrant or any
portion thereof and paying the exercise price by cash or check, the Holder shall
have the right to convert this Warrant or any portion thereof into the number of
Shares to be computed using the following formula:

                                X = (P) (Y) (A-B)
                                     -----------
                                        A

where  X  =   the number of Shares to be issued to the Holder for the portion of
              this Warrant being converted,

       P  =   the  portion  of  this  Warrant  being  converted  (expressed  as
              a decimal),

       Y  =   the total number of Shares  issuable  upon exercise of this
              Warrant in full,

       A  =   the closing price of one share of Common Stock on the Nasdaq
              Stock Market (or the then-principal market on which the Company's
              Common Stock is traded) on the business day immediately preceding
              the date of receipt by the Company of the notice of conversion,
              or, if there has been no public offering of the Company's Common
              Stock, then a price determined in good faith by the Company's
              Board of Directors, and

       B  =   the exercise price of the Shares on the date of receipt by the
              Company of the notice of conversion.

Upon such  conversion,  the portion of this Warrant  represented by the variable
"P" above shall be cancelled.

              (c)   Fractional Shares. No fractional shares of Common Stock
will be issued in connection with any exercise hereunder, but in lieu of such
fractional shares the Company shall make a cash payment therefor based on the
closing price of the Common Stock on the Nasdaq Stock Market (or the
then-principal market on which the Company's Common Stock is traded) on the day
immediately preceding the date of exercise or, if there has been no public
offering of the Company's Common Stock, a cash payment based on the good faith
determination made by the Company's Board of Directors.

              (d)   Preferred Supplier Relationship. During the term of this
Warrant, the Holder shall treat the Company as a preferred supplier to its
Integrated Electronics Systems Sector ("IESS") by providing it an opportunity to
participate in all bona fide requests for

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quotations, bids or other opportunities to provide manufacturing and related
services to IESS, subject to the Company being competitive as to prices and
quality; provided, however, that the Company shall retain the sole discretion to
determine whether it wishes to bid on such manufacturing or related services on
a project by project basis. In connection with the manufacturing services
provided by the Company to the Holder, if IESS decides to divest any electronics
or electromechanical assembly assets related to the type of business being
sourced to the Company ("Eligible Assets") by sale to a third party, IESS shall
give due and fair consideration to including the Company as a potential bidder
for such Eligible Assets.

              (e)   Acceleration of Exerciseability in Certain Events.
Notwithstanding anything to the contrary set forth herein, the Holder, at its
option, can exercise this Warrant prior to the fourth anniversary hereof in the
following circumstances: for each $100 million of business (up to an aggregate
of $1 billion) concluded between the Company and the Holder after the date of
this Warrant (by itself or through one or more of the Holder's affiliates), the
Holder shall be entitled to exercise this Warrant in part to purchase the
greater of (x) 10% of the Shares initially covered by this Warrant or (y) if at
the time of such exercise less than 10% of the Shares initially covered by this
Warrant remain unexercised, the remaining unexercised Shares covered hereby. It
is the intent of the parties, however, that the supplier relationship between
the Holder and the Company will continue after this Warrant is fully
exercisable.

              (f)   Documentation of Concluded Business. For purposes of
documenting the amount of business concluded between the Holder and the Company,
the Holder shall prepare a summary of paid Company invoices and deliver such
summary to the Company with supporting documentation (which such evidence shall
be recognized by the Company as promptly as possible after presentment and in
any event deemed accepted by the Company on the 30th day after submission to the
Company by the Holder). In preparing such summary, the Holder shall: (x) not
include any business concluded with Saturn Electronics Texas, LLC, (y) not
include the business of any company acquired by the Company after the date of
this Warrant which business is attributable, in whole or in part, to a period
prior to the date of acquisition, and (z) with respect to projects conducted
jointly by the Holder and the Company with third parties, only the amount
attributable to the Company's value added business shall be taken into
consideration.

         6.   No Transfer  of Warrant.  This  Warrant  may not be  transferred
or assigned by the Company or the Holder hereof in whole or in part, except that
the Holder may transfer this Warrant in whole or in part to one or more
affiliates of the Holder; provided that Holder shall remain responsible for all
of its obligations hereunder notwithstanding such transfer or assignment;
provided further that the Holder can assign its obligations hereunder with the
consent of the Company, which consent will not be unreasonably withheld.

         7.   Registration  Rights.  The rights and obligations  described on
the attached Exhibit C respecting the registration rights granted by the Company
to the Holder are incorporated into this Warrant and are agreed to and accepted
by the parties hereto; provided, however, that if the Common Stock of the
Company is not publicly traded in the United States of America, then the Holder
shall have no such registration rights; provided further that the manner of
distribution described in Schedule 1 to Exhibit C notwithstanding, upon the
mutual agreement of the parties hereto, the Holder may sell the Shares in an
underwritten offering.

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         8.   Loss or Destruction of Warrant. Subject to the terms and
conditions hereof, upon receipt by the Company of evidence reasonably
satisfactory to it of the loss, theft, destruction or mutilation of this Warrant
and, in the case of loss, theft or destruction, of such bond or indemnification
as the Company may reasonably require, and, in the case of mutilation, upon
surrender and cancellation of this Warrant, the Company will execute and deliver
a new Warrant of like tenor.

         9.   Certain Representations and Warranties. The Company represents
and warrants to the Holder that:

              (a)   Organization and Standing. The Company (x) is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Michigan and is duly qualified or licensed to do business and in
good standing in each jurisdiction in which the failure to be so qualified or
licensed and in good standing (individually or in the aggregate) would have a
material adverse effect on the Company, and (y) has all requisite corporate
power and authority necessary to enable it to carry on its business as now
conducted, to issue the Warrant and to carry out the transactions contemplated
hereby.

              (b)   Capitalization. The authorized capital stock of the
Company consists of 10,000,000 shares of Class A Voting Common Stock and
10,000,000 shares of Class B Nonvoting Common Stock. The rights, privileges and
preferences of the Class A Voting Common Stock and the Class B Nonvoting Common
Stock are as stated in the Company's Articles of Incorporation. As of the date
hereof, there are issued and outstanding 4,956,880 shares of Class A Voting
Common Stock, 4,956,880 shares of Class B Nonvoting Common Stock and no other
shares of capital stock. All such issued and outstanding shares of Class A and
Class B Common Stock have been duly authorized and validly issued, are fully
paid and nonassessable, and were issued in compliance with all applicable state
and federal securities laws. As of the date hereof, there are no outstanding
options, warrants or other rights to purchase or otherwise acquire equity
securities of the Company, securities convertible into or exchangeable for
equity securities of the Company, options, warrants or other rights to purchase
or otherwise acquire any such convertible or exchangeable securities, or
agreements to issue or grant any of the foregoing, other than pursuant to
employee benefit plans of the Company (including employee option plans) or
pursuant to agreements entered into in connection or simultaneously with this
Warrant.

              (c)   Authorization. All corporate action on the part of the
Company and its officers, directors and shareholders necessary for the
authorization, execution and delivery of, and the performance of all obligations
of the Company under, the Warrant, and for the authorization, issuance and
delivery of the Shares issuable upon exercise of the Warrant has been taken.
This Warrant has been duly executed and delivered by the Company and constitutes
the legal, valid and binding obligation of the Company, enforceable against the
Company in accordance with its terms, subject to: (x) judicial principles
respecting election of remedies or limiting the availability of specific
performance, injunctive relief and other equitable remedies; and (y) bankruptcy,
insolvency, reorganization, moratorium or other similar laws now or hereafter in
effect generally relating to or affecting creditors' rights.

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              (d)   No Conflicts. The execution and delivery by the Company of
the Warrant and the performance by the Company of its obligations hereunder and
the consummation of the transactions contemplated hereby do not and will not
conflict with, result in any violation of or default (with or without notice or
lapse of time or both) under, give rise to a right of termination, cancellation
or acceleration or any material obligation or to the loss of any material
benefit under or result in or require the creation, imposition or extension of
any lien, security interest, restriction or other encumbrance upon any of the
Company's properties or assets (other than those imposed under the Warrant)
under (i) any oral or written contract, indenture, mortgage, lease, deed,
commitment, agreement, arrangement or legally binding understanding or
instrument, (ii) any provision of its constitutive or governing documents or
(iii) any law, statute, ordinance, rule, regulation, judgment, order, decree or
arbitral award, except for any such conflicts, violations, defaults, rights,
obligations or losses that, individually or in the aggregate, would not have a
material adverse effect on the Company or its ability to consummate the
transactions contemplated under this Warrant.

         10.  Successors.  The  provisions of this Warrant shall be binding upon
and inure to the benefit of the Company, the Holder and their respective
successors and assigns.

         11.  Miscellaneous. This Warrant (references in this Section 11 to the
"Warrant" shall be deemed to include the Exhibits attached hereto) shall be
governed by the internal laws of the State of Michigan. The headings in this
Warrant are for purposes of convenience and reference only, and shall not be
deemed to constitute a part hereof. Neither this Warrant nor any term hereof may
be changed, waived, discharged or terminated orally but only by an instrument in
writing signed by the Company and the Holder. All notices and other
communications from the Company to the Holder shall be delivered personally or
mailed by first class mail, postage prepaid, to the address furnished to the
Company in writing by the Holder who shall have furnished an address to the
Company in writing, and if mailed shall be deemed given three days after deposit
in the United States mail.

                  [Remainder of page intentionally left blank.]

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        ISSUED this 15th day of March, 2000.
                    ----        -----
                                         SATURN ELECTRONICS & ENGINEERING, INC.,

                                         By: /s/ W. Tsuha
                                            ------------------------------------
                                               Its: President
                                                   -----------------------------

ACCEPTED AND AGREED TO:

MOTOROLA, INC.,

By: /s/
   -----------------------------
      Its: Senior Vice President
          ----------------------
Group General Manager
      Energy Systems Group

                                 SIGNATURE PAGE
                                       OF
                               WARRANT TO PURCHASE
                         CLASS B NONVOTING COMMON STOCK

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                                    Exhibit A

                               NOTICE OF EXERCISE

TO:      SATURN ELECTRONICS & ENGINEERING, INC.

         1.       The undersigned hereby:

                  |_|      elects to purchase                   shares of Common
                           Stock, of Saturn Electronics & Engineering, Inc.
                           pursuant to the terms of the attached Warrant, and
                           tenders herewith payment of the purchase price in
                           full, together with all applicable transfer taxes, if
                           any, or

                  |_|      elects to exercise its net issuance rights pursuant
                           to Section 5(b) of the attached Warrant with respect
                           to shares of Common Stock.

         2.       Please issue a certificate or certificates representing said
shares of Common Stock in the name of the undersigned or in such other name as
is specified below:

                                     --------------------------------
                                     (Name)

                                     --------------------------------
                                     (Address)

-------------------                   Motorola, Inc.
(Date)

                                             By:
                                                   -----------------------------

                                             Title:
                                                   -----------------------------

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                                    Exhibit B

               INVESTMENT SUITABILITY AND REPRESENTATION STATEMENT

                                     __________ Shares of Common Stock of Saturn
                                     Electronics & Engineering, Inc.

         In connection with the purchase of the above-listed securities, the
undersigned hereby represents to Saturn Electronics & Engineering, Inc. (the
"Company") as follows:

         Receipt of Information. The undersigned has received all the
information it considers necessary or appropriate for deciding whether to
purchase the Common Stock issuable upon exercise of the Warrant dated
______________, 2000 (the "Warrant") issued by the Company to the undersigned,
and it has examined the information furnished to it by the Company.

         Investment Representation.

         (a)    The shares of stock to be received upon the exercise of the
Warrant (the "Securities") will be acquired for investment for its own account,
not as a nominee or agent, and not with a view to the sale or distribution of
any part thereof, and the undersigned has no present intention of selling,
granting participation in or otherwise distributing the same, but subject,
nevertheless, to any requirement of law that the disposition of its property
shall at all times be within its control. By executing this Statement, the
undersigned further represents that it does not have any contract, undertaking,
agreement or arrangement with any person to sell, transfer, or grant
participations to such person or to any third person, with respect to any
Securities issuable upon exercise of the Warrant.

         (b)    The undersigned understands that the Securities issuable upon
exercise of the Warrant at the time of issuance may not be registered under the
Securities Act of 1933, as amended (the "Act"), and applicable state securities
laws, on the ground that the issuance of such securities is exempt pursuant to
Section 4(2) of the Act and state law exemptions relating to offers and sales
not by means of a public offering, and that the Company's reliance on such
exemptions is predicated on the undersigned's representations set forth herein.

         (c)    The undersigned agrees that in no event will it make a
disposition of any Securities acquired upon the exercise of the Warrant unless
and until (i) it shall have notified the Company of the proposed disposition and
shall have furnished the Company with a statement of the circumstances
surrounding the proposed disposition, and (ii) it shall have furnished the
Company with an opinion of counsel satisfactory to the company and the Company's
counsel to the effect that (A) appropriate action necessary for compliance with
the Act and any applicable state securities laws has been taken or an exemption
from the registration requirements of the Act and such laws is available, and
(B) that the proposed transfer will not violate any of said laws.

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         (d)    The undersigned represents that it is able to fend for itself in
the transactions contemplated by this Statement, has such knowledge and
experience in financial and business matters as to be capable of evaluating the
merits and risks of its investments, and has the ability to bear the economic
risks (including the risk of a total loss) of its investment. The undersigned
represents that it has had the opportunity to ask questions of the Company
concerning the Company's business and assets and to obtain any additional
information which it considered necessary to verify the accuracy of or to
amplify the Company's disclosures, and has had all questions which have been
asked by it satisfactorily answered by the Company.

         (e)    The undersigned  acknowledges that the Securities  issuable upon
exercise of the Warrant  must be held  indefinitely  unless the  Securities  are
registered  under the Act or an exemption from such  registration  is available.
The undersigned is aware of the provisions of Rule 144 promulgated under the Act
which permit limited resale of shares purchased in a private  placement  subject
to the satisfaction of certain  conditions,  including,  among other things, the
existence of a public market for the shares, the availability of certain current
public  information  about the Company,  the resale  occurring not less than one
year after a party has purchased and paid for the security to be sold,  the sale
being  through a  "broker's  transaction"  or in  transactions  directly  with a
"market  maker" (as provided by Rule 144(f)) and the number of shares being sold
during  any  three-month  period  not  exceeding  specified   limitations.   The
undersigned  is aware that the  conditions for resale set forth in Rule 144 have
not been satisfied as of the date hereof.

Dated:                                        Motorola, Inc.
      ---------------------
                                              By:
                                                 -------------------------------
                                              Title:
                                                    ----------------------------

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                                    EXHIBIT C

                               REGISTRATION RIGHTS

         1.     Definitions.  For purposes of this Exhibit C, the following
terms shall have the following meanings:

         "Common Stock" means the Company's common stock, par value $____ per
         share.

         "Exchange Act" means the Securities Exchange Act of 1934, as amended,
         and the rules and regulations promulgated thereunder.

         "Holder" means collectively, the Holder of the Warrant as set forth in
         the Warrant Certificate(s) and any transferee of the Warrant (or any
         part thereof) permitted pursuant to the terms of the Warrant.

         "Person" means an individual, partnership, corporation, limited
liability company, trust or other entity, or a government or agency or political
subdivision thereof.

         "Prospectus" means the prospectus included in any Registration
Statement at the time the same becomes effective, as amended or supplemented by
any prospectus supplement, including post-effective amendments and all material
incorporated by reference in the prospectus.

         "Registrable Securities" means the Shares; provided, however, that a
Share shall be a Registrable Security only for so long as the Share continues to
be a Restricted Security. For purposes of this Exhibit C, each Share shall be a
Restricted Security at the date of this Exhibit C. A Share shall cease to be a
Restricted Security on the earliest of the following dates: (i) the date the
Company has effectively registered the Share under the Securities Act and the
Holder has disposed of the Share in accordance with the Registration Statement
covering the Share, or (ii) the date the Holder shall be eligible to sell (in
one transaction) all of the Registrable Securities held by the Holder to the
public pursuant to Rule 144 (or any similar provisions then in force) under the
Securities Act, or (iii) the date the Holder has otherwise transferred the
Share.

         "Registration Statement" means any registration statement of the
Company which covers any of the Registrable Securities pursuant to the
provisions of this Exhibit C, including all pre-effective amendments and
post-effective amendments thereto, the Prospectus and supplements thereto, all
exhibits and all material incorporated by reference in the registration
statement.

         "SEC" means the Securities and Exchange Commission.

         "Securities Act" means the Securities Act of 1933, as amended, and the
         rules and regulations promulgated thereunder.

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         2A.    Shelf Registration. Within 60 days after the Holder requests
the Company to file a Registration Statement with respect to the Registrable
Securities (provided that the Holder shall not be entitled to make such a
request prior to the date the Company becomes eligible to file a Registration
Statement (with respect to the sale of the Shares by the Holder) on Form S-3
under the Securities Act), the Company shall prepare and file a Registration
Statement providing for the sale of the Registrable Securities by the Holder
pursuant to Rule 415 of the Securities Act and/or any similar rule that may be
adopted by the SEC; provided, however, that the Holder shall not sell, transfer,
pledge or otherwise dispose of any Registrable Securities while such
Registration Statement remains effective, except during the ten (10) business
days immediately following the second business day following the release by the
Company to the public of quarterly or annual earnings. Notwithstanding the
foregoing, if the Company shall furnish to the Holder a certificate signed by
the President of the Company stating that, in the good faith judgment of the
President of the Company, the Company is in receipt of material, undisclosed
information, the disclosure of which would be detrimental to the Company, then
the Holder shall not sell, transfer, pledge or otherwise dispose of any
Registrable Securities for the period or periods specified in such certificate;
provided, however, that the Holder shall not be so restricted with respect to
such sales, transfers, pledges or other dispositions pursuant to this sentence
or the next succeeding sentence for more than an aggregate of ninety (90) days
in any fiscal year of the Company. If at any time after the Company files a
Registration Statement hereunder the Company decides to make a public offering
of securities through one or more underwriters, and an underwriter selected by
the Company to manage such proposed underwriting advises the Company that it
believes that such underwritten offering could be adversely affected by the
concurrent registered offering of Registrable Securities pursuant hereto, then
the Holder shall not sell, transfer, pledge or otherwise dispose of any
Registrable Securities at the request of the Company during such public offering
of securities; provided further, that the aggregate period of any such
restriction, when taken together with the restriction imposed by the Company
pursuant to a certificate signed by the President of the Company pursuant to the
previous sentence, shall not exceed ninety (90) days in any fiscal year of the
Company.

         2B.    Incidental Registration. If the Company at any time (other than
pursuant to Section 2A hereof) proposes to register its Capital Stock under the
Securities Act for sale to the public, whether for its own account or for the
account of other security holders or both (except with respect to registration
statements on Forms S-4 or S-8 or another form not available for registering
Common Stock for sale to the public) each such time it will give at least 20
days' prior written notice to the Holder of its intention to do so ("Notice of
Incidental Registration"). If at the time of such notice there does not exist an
effective registration statement pursuant to Section 2A with respect to
Registrable Securities held by Holder (or if pursuant to Section 2A the Company
is not permitted to sell its Registrable Securities for any reason pursuant to
the Shelf Registration), upon the written request of the Holder given within 10
days after receipt of any Notice of Incidental Registration (which request shall
state the intended method of disposition thereof), the Company will use its best
efforts to cause the Registrable Securities as to which registration shall have
been so requested to be included in the securities to be covered by the
registration statement proposed to be filed by the Company, all to the extent
requisite to permit the sale or other disposition by the Holder (in accordance
with its written request) of such Registrable Securities so registered. The
amount of Registrable Securities to be included in such an underwriting may be
reduced if and only to the extent that the managing underwriter shall be of the
opinion that such inclusion would adversely

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affect the price of the Registrable Securities to be sold therein; provided,
further, however, that, in an initial public offering, the Company shall have
the first priority to sell shares of Common Stock in such offering and the
number of shares requested to be included in such public offering by the Holder
shall be reduced pro rata based on the number of shares owned by the Holder on
the date notice is given by the Company pursuant to this Section 2B.

         3. Registration Procedures. In connection with the Company's
registration obligations pursuant to Sections 2A and 2B of this Exhibit C, the
Company shall use its best efforts to effect the registration of the Registrable
Securities in accordance with the method of distribution described on the
attached Schedule 1 and, pursuant thereto, the Company shall as reasonably
expeditiously as possible:

                  (a)    prepare and file with the SEC a Registration  Statement
         within 60 days after the initial request from the Holder to register
         such Registrable Securities and use its best efforts to cause such
         Registration Statement to become effective within 90 days after the
         initial request from the Holder to register such Registrable
         Securities;

                  (b)    prepare and file with the SEC such amendments and
         supplements to such Registration Statement and the Prospectus used in
         connection therewith as may be necessary to keep such Registration
         Statement continuously effective for a period expiring on the earlier
         of (i) the date on which all of the Registrable Securities covered by
         the Registration Statement have been sold pursuant thereto or (ii) the
         date on which all Registrable Securities are eligible for sale pursuant
         to Rule 144 under the Securities Act;

                  (c)    furnish to the Holder, without charge, at least one
         signed copy of the Registration Statement and any post-effective
         amendment thereto, including financial statements and schedules, all
         documents incorporated by reference therein and all exhibits (including
         those incorporated by reference);

                  (d)    deliver to the Holder, without charge, as many copies
         of the Prospectus (including each preliminary prospectus) and any
         amendment or supplement thereto as it may reasonably request, but only
         while the Company is required to cause the Registration Statement to
         remain effective;

                  (e)    use its best efforts to register or qualify  such
         Registrable Securities for offer and sale under the securities or blue
         sky laws of such U. S. States or possessions as the Holder may
         reasonably request (the "Blue Sky Laws") and do any and all other acts
         or things necessary or advisable to enable the Holder to consummate the
         disposition in such jurisdictions of Registrable Securities owned by
         the Holder; provided, however, that in no event shall the Company be
         obligated to qualify generally to do business in any jurisdiction where
         it is not now qualified or to take any action which would subject it to
         the service of process in suits other than those arising out of the
         offer or sale of the securities covered by such Registration Statement
         in any jurisdictions where it is not now so subject or subject itself
         to taxation in any jurisdiction where it would not otherwise be
         subject;

                                       3

<PAGE>   14

                  (f)    cooperate with the Holder to facilitate the timely
         preparation and delivery of certificates representing Registrable
         Securities to be sold, free of any and all restrictive legends, which
         certificates shall be in such denominations and registered in such
         names as the Holder may request;

                  (g)    use its best efforts to cause all Registrable
         Securities covered by the Registration Statement to be listed on the
         Nasdaq Stock Market ("Nasdaq") (or any other market on which the Common
         Stock is then listed);

                  (h)    promptly notify the Holder at any time when a
         Prospectus relating thereto is required to be delivered under the
         Securities Act, of the happening of any event as a result of which the
         Prospectus included in such Registration Statement contains an untrue
         statement of a material fact or omits any fact necessary to make the
         statements therein not misleading, and, at the request of the Holder,
         except as provided in Section 2(a), the Company shall prepare a
         supplement or amendment to such Prospectus so that, as thereafter
         delivered to the purchasers of such Registrable Securities, such
         Prospectus shall not contain any untrue statement of a material fact or
         omit to state any fact necessary to make the statements therein not
         misleading.

                  (i)    advise the Holder, promptly after it shall receive
         notice or obtain knowledge thereof, of the issuance of any stop order
         by the SEC suspending the effectiveness of such Registration Statement
         or the initiation of any proceeding for such purpose and promptly use
         all reasonable efforts to prevent the issuance of any stop order or to
         obtain its withdrawal if such stop order should be issued;

                  (j)    furnish to the Holder at the time of the disposition of
         such Registrable Securities by the Holder a signed copy of an opinion
         of counsel for the Company as to such matters as such Holder may
         reasonably request and substantially to the effect that, a registration
         statement covering such Registrable Securities has been filed with the
         Commission under the Securities Act and has been made effective by
         order of the Commission; said registration statement and the prospectus
         contained therein comply as to form in all material respects with the
         requirements of the Securities Act and, based upon such investigation
         and inquiry as said counsel deems necessary or appropriate, nothing has
         come to said counsel's attention that would cause it to believe that
         either said registration statement or said prospectus contains an
         untrue statement of a material fact or omits to state a material fact
         required to be stated therein or necessary to make the statements
         therein (in the case of said prospectus, in the light of the
         circumstances under which they were made) not misleading; said counsel
         knows of no legal or governmental proceedings required to be described
         in said prospectus that are not described as required, or of any
         contract or documents of a character required to be described in said
         registration statement or said prospectus or to be filed as an exhibit
         to said registration statement or to be incorporated by reference
         therein that is not described and filed as required; no stop order has
         been issued by the Commission suspending the effectiveness of such
         registration statement and that, to the best of such counsel's
         knowledge, no proceedings for the issuance of such a stop order are
         threatened or contemplated; and the applicable provisions of the
         securities or blue sky laws of

                                       4

<PAGE>   15
     each state in which the Company shall be required, pursuant to clause
     (e) of this Section 3, to register or qualify such Registrable
     Securities, have been complied with, assuming the accuracy and
     completeness of the information furnished to such counsel with respect
     to each filing relating to such laws; it being understood that said
     counsel may rely, as to all factual matters and financial data treated
     therein, on certificates of the Company (copies of which shall be
     delivered to such Holders), and as to all questions of the laws of each
     state in which the Company shall be so required to register or qualify
     such Registrable Securities, on the opinion of counsel from such state
     reasonably acceptable to such Holder, copies of which shall be
     delivered to such Holder; and

         (k)  upon reasonable notice to and consultation with the
     Company, make available for inspection by the Holder and any attorney
     or accountant retained by the Holder all financial and other records,
     pertinent corporate documents and properties of the Company reasonably
     necessary in order for the Holder to sell its Shares pursuant to the
     Registration Statement; provided that such Persons shall agree in a
     writing satisfactory in form and substance to the Company to keep
     confidential any records, information or documents of the Company
     unless a court or administrative agency requires the disclosure of the
     records, information or documents or such records, information or
     documents (A) become generally available to the public other than as
     result of a disclosure by any such Persons, (B) were available to such
     Persons on a non-confidential basis prior to the disclosure of such
     records, information or documents pursuant to this Exhibit C, or (C)
     become available to such Persons on a non-confidential basis from a
     source  other than the  Company  or its  agents,  advisors  or
     representatives.

     The Company may require the Holder to furnish to the Company
information regarding the Holder and the distribution of the Registrable
Securities as the Company may from time to time reasonably request in writing
and as necessary for the registration of the Shares.

     Upon receipt of any notice from the Company of the happening of any of
the following: (i) the SEC's issuance of any stop order denying or suspending
the effectiveness of the Registration Statement or the initiation of any
proceeding for that purpose, (ii) the Company's receipt of any stop order
denying registration or suspending the qualification of the Registrable
Securities for sale or the initiation of any proceeding for such purpose, (iii)
the happening of any event which makes any statement made in the Registration
Statement, the Prospectus or any document incorporated by reference therein
untrue or which requires any change in the Registration Statement, the
Prospectus or any document incorporated by reference therein to make the
statements not include an untrue statement of material fact or not omit any
material fact required to be stated therein or necessary to make the statements
therein not misleading in light of the circumstances then existing, the Holder
shall discontinue the disposition of Registrable Securities until the Holder
receives a supplemented or amended Prospectus from the Company or until the
Company advises the Holder in writing that the Holder may resume the use of the
Prospectus, and have received copies of any additional or supplemental filings
which are incorporated by reference in the Prospectus. If the Company so
directs, the Holder will deliver to the Company (at the Company's expense) all
copies, other than permanent file copies then in the Holder's possession, of the
Prospectus covering the Registrable Securities at the time the Holder received
the notice.

                                       5

<PAGE>   16

         4.   Registration Expenses. Regardless of when the Registration
Statement becomes effective, the Company shall bear all costs and expenses
incident to the Company's performance of, or compliance with, this Exhibit C,
including without limitation all registration and filing fees, fees and expenses
of compliance with the Blue Sky Laws, printing expenses, messenger, telephone
and delivery expenses, Nasdaq qualification and listing fees, and fees and
disbursements of counsel for the Company, all independent certified public
accountants of the Company and fees and expenses of other Persons retained by
the Company relating to the distribution of the Registrable Securities (all such
expenses being herein called "Registration Expenses"). The Holder shall pay all
discounts and commissions attributable to the Registrable Securities, all
transfer taxes relating to the sale or disposition of the Registrable Securities
and any fees of any attorney or accountant retained by the Holder.

         5.   Disclosure. With a view to making available registration on
Form S-3 and the benefits of Rule 144 under the Securities Act, the Company
agrees, for a period two years following the earlier of (x) five (5) years after
the date of this Exhibit C and (y) the date upon which the Holder has purchased
from the Company all of the Shares available under the Warrant, to:

              (a)    make and keep current public information available
         within the meaning of Rule 144(c) of the Securities Act;

              (b)    file with the SEC in a timely manner all reports and
         other documents and information required of the Company under the
         Exchange Act, and take such other actions as may be necessary to assure
         the availability of Form S-3 for use in connection with the
         registration rights provided in this Exhibit C; and

              (c)    furnish to the Holder forthwith upon request a written
         statement as to the Company's compliance with the reporting
         requirements of Rule 144 and the Exchange Act, a copy of the Company's
         most recent annual and quarterly reports, and such other reports,
         documents and other information in the possession of or reasonably
         obtainable by the Company as the Holder may reasonably request in
         availing itself of Rule 144.

         6.   Indemnification.

              (a)    Indemnification by the Company.  The Company  agrees to
         indemnify and hold harmless, to the full extent permitted by law, the
         Holder against all losses, claims, damages, liabilities and expenses
         (including, without limitation, reasonable attorneys' fees and
         expenses) to which the Holder may become subject under federal or state
         securities laws or otherwise which arise out of, or are caused by, the
         Company's violation of any federal or state securities laws, including,
         but not limited to, any untrue or alleged untrue statement of a
         material fact contained in any Registration Statement, Prospectus or
         preliminary prospectus or in any application or other request that the
         Company files in connection with the registration contemplated by such
         Registration Statement, including any application or request filed
         under the Blue Sky Laws or any omission or alleged omission to state
         therein a material fact required to be stated therein or necessary to
         make the statements therein not misleading, except insofar as the same
         are caused by or contained in any written information furnished to the
         Company by the Holder expressly for use therein; provided, however, the

                                       6

<PAGE>   17

         Company will not be liable in any such case to the extent that any such
         loss, claim, damage, liability or expense results from the fact that
         the Holder sold Registrable Securities to a Person to whom there was
         not sent or given, at or prior to the written confirmation of such
         sale, a copy of the final prospectus or of the final prospectus as then
         amended or supplemented, whichever is most recent, if the Company had
         previously made available to the Holder a sufficient number of copies
         thereof and such final prospectus, as then amended or supplemented,
         corrected such misstatement or omission.

                  (b)    Indemnification by the Holder.  In connection  with any
         Registration Statement in which the Holder's Registrable Securities are
         registered and sold, the Holder shall furnish to the Company such
         information and affidavits as the Company reasonably requests for use
         in connection with any Registration Statement or Prospectus and agrees
         to indemnify and hold harmless, to the full extent permitted by law,
         the Company, its officers, directors and each Person who controls the
         Company (within the meaning of the Securities Act) against any losses,
         claims, damages, liabilities and expenses (including, without
         limitation, reasonable attorneys' fees and expenses) resulting from any
         untrue or alleged untrue statement of a material fact or any omission
         or alleged omission of a material fact required to be stated in the
         Registration Statement, Prospectus, preliminary Prospectus or any
         application filed under the Blue Sky Laws or necessary to make the
         statements therein not misleading, but only to the extent that the
         untrue statement or omission is contained in any written information or
         affidavit so furnished by the Holder to the Company expressly for
         inclusion in the Registration Statement, Prospectus or application
         filed under the Blue Sky Laws or results from the fact that the Holder
         sold Registrable Securities to a Person to whom there was not sent or
         given, at or prior to the written confirmation of such sale, a copy of
         the final prospectus or of the final prospectus as then amended or
         supplemented, whichever is most recent, if the Company had previously
         made available a sufficient number of copies thereof to the Holder and
         such final prospectus, as then amended or supplemented, corrected such
         misstatements or omission.

                  (c)    Conduct of Indemnification Proceedings.   Any  Person
         entitled to indemnification hereunder shall (i) promptly notify the
         indemnifying party of any claim with respect to which it seeks
         indemnification and (ii) permit such indemnifying party to assume the
         defense of such claim with counsel reasonably satisfactory to the
         indemnified party. Any Person entitled to indemnification hereunder
         shall have the right to employ separate counsel and to participate in
         the defense of the claim, but the fees and expenses of the counsel
         shall be at the expense of the Person unless (A) the indemnifying party
         has agreed to pay the fees or expenses, (B) the indemnifying party
         shall have failed to assume the defense of the claim and employ counsel
         reasonably satisfactory to the Person, or (C) in the reasonable
         judgment of the Person, based upon advice of its counsel, a conflict of
         interest may exist between the Person and the indemnifying party with
         respect to the claims (in which case, if the Person notifies the
         indemnifying party in writing that the Person elects to employ separate
         counsel at the expense of the indemnifying party, the indemnifying
         party shall not have the right to assume the defense of the claim on
         behalf of the Person), and in no event (except as set forth in the last
         sentence of this Section 6(c)), shall the Holder have the right to
         employ more than one separate counsel at the Company's expense for all
         of them for any matter. If the

                                      7

<PAGE>   18

         indemnifying party assumes the defense, the indemnifying party will not
         be subject to any liability for any settlement made without its
         consent. The indemnifying party, however, may not unreasonably withhold
         its consent. No indemnifying party will be required to consent to the
         entry of any judgment or to enter into any settlement which does not
         include as an unconditional term the claimant's or plaintiff's release
         of the indemnified party from all liability in respect to the claim or
         litigation. An indemnifying party who is not entitled to, or elects not
         to, assume the defense of a claim shall not be obligated to pay the
         fees and expenses of more than one counsel in any jurisdiction for all
         parties indemnified by the indemnifying party with respect to the
         claim, unless in the reasonable judgment of any indemnified party a
         conflict of interest may exist between such indemnified party and any
         other of such indemnified parties with respect to the claim, in which
         event the indemnifying party shall be obligated to pay the fees and
         expenses of such additional counsel or counsels.

                  (d)    Survival. The indemnities provided in this Section 6
         shall survive the Holder's transfer of any Registrable Securities.

                                       8

<PAGE>   19

                                  SCHEDULE 1 TO
                         EXHIBIT C: REGISTRATION RIGHTS

         The shares offered hereby may be sold from time to time by the Selling
Shareholder, or by pledgees, donees, transferees or other successors in interest
of the Selling Shareholder. Such sales may be made on the Nasdaq Stock Market,
or otherwise, at prices and on terms then prevailing or at prices related to the
then-current market prices, or in negotiated transactions at negotiated prices.
The shares may be sold by one or in a combination of the following: (a) a block
trade in which the broker or dealer so engaged will attempt to sell the shares
as agent, but may position and resell a portion of the block as principal to
facilitate the transaction; (b) purchases by a broker or dealer as principal and
resale by such broker or dealer for its account pursuant to this Prospectus; and
(c) ordinary brokerage transaction and transactions in which the broker solicits
purchasers. In effecting sales, brokers or dealers engaged by the Selling
Shareholder may arrange for other brokers or dealers to participate.<PAGE>   1
                                                                   EXHIBIT 10.28

                               FIRST AMENDMENT TO
                     SATURN ELECTRONICS & ENGINEERING, INC.
                       WARRANT TO PURCHASE 495,688 SHARES
                       OF CLASS B NONVOTING COMMON STOCK

     THIS FIRST AMENDMENT TO SATURN ELECTRONICS & ENGINEERING, INC. WARRANT TO
PURCHASE 495,688 SHARES OF CLASS B NONVOTING COMMON STOCK (hereinafter
"Amendment"), is made as of this 24th day of March, 2000 by and between
Motorola, Inc. (the "Holder"), and Saturn Electronics & Engineering, Inc., a
Michigan corporation (the "Company").

     WHEREAS, on March 15, 2000, Holder acquired from the Company a Warrant to
Purchase 495,688 Shares of Class B Nonvoting Common Stock (the "Warrant"); and

     WHEREAS, Holder and Company desire to amend the Warrant as set forth in
this Amendment.

     NOW, THEREFORE, in consideration of the Warrant and for other good and
valuable consideration, the receipt and sufficiency of which are acknowledged,
Holder and Company amend the Warrant as follows:

     The Title ad Preamble on the first page of the Warrant are amended to
change the number of Class B Nonvoting Common Shares available for subscription
and purchase from 495,688 to 521,777.

     All other terms and provisions of the Warrant remain in full force and
effect and are hereby affirmed.

     IN WITNESS WHEREOF, the parties have executed this Amendment as of the date
written above.

Holder:                                      Company:

MOTOROLA, INC.                               SATURN ELECTRONICS &
                                             ENGINEERING, INC.

By:  /s/ Carl F. Koenamann                  By: /s/ W. Tsuha
   ------------------------------------         ---------------------

Title: Executive Vice President and CEO      Title: President
       --------------------------------             -----------------

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