Document:

<PAGE>

                                                                    Exhibit 10.2

                    SECOND AMENDMENT TO EMPLOYMENT AGREEMENT

         This SECOND AMENDMENT TO EMPLOYMENT AGREEMENT (the "Second Amendment"),
is effective as of the 10th day of September, 2002, by and between CellStar Ltd.
(the "Employer"), CellStar Corporation, a Delaware corporation and parent
company of Employer ("Parent"), and Robert Kaiser (the "Employee").

         WHEREAS, the parties hereto are parties to that one certain Employment
Agreement effective as of December 12, 2001, as amended by that one certain
First Amendment to Employment Agreement effective as of April 2, 2002 (such
Employment Agreement and First Amendment being hereinafter collectively referred
to as the "Employment Agreement"); and

         WHEREAS, under the terms of the Employment Agreement, the Employer has
agreed to consider Employee for the position of President of the Company's North
American Region; and

         WHEREAS, the Employment Agreement further provides that Employer will
pay to Employee the amount of $700,000 in the event Employee has not been named
as Senior Vice President of the Parent and President of the Employer's North
American Region on or before September 1, 2002; and

         WHEREAS, the parties recognize that Mr. Kaiser's continued service in
the role of Chief Financial Officer through the filing of the Company's Form 10K
is essential; and

         WHEREAS, the parties have agreed to further amend the Employment
Agreement as set forth herein and as of the date approved by the Board of
Directors.

         NOW, THEREFORE, in consideration of the premises and the mutual
covenants herein contained, the parties hereby agree as follows:

         1.  Upon the execution of this amendment, Employer shall pay the amount
of $200,000 to Employee in consideration for Employee's agreement to amend the
Employment Agreement as set forth in Section 2 below.

         2.  Section 1.3(a) of the Employment Agreement is hereby amended and
restated as follows:

         (a) Position. During the Term, the Employee shall serve as Senior Vice
         President and Chief Financial Officer of Employer, with authority,
         duties and responsibilities consistent with such position, and shall
         perform such other services for Employer, Parent and their affiliated
         entities consistent with such position as may be reasonably assigned to
         him from time to time by the Chief Executive Officer and/or the boards
         of directors of Employer and/or Parent. It is

<PAGE>

         specifically understood that, over time, Employee desires to
         assume greater responsibility for business operations,
         particularly in the Employer's North American Region. In this
         regard, Employee has agreed to serve as Senior Vice President
         and Chief Financial Officer of Employer so long as Employer
         agrees to consider Employee for the position of President of
         the Company's North American Region. To demonstrate its
         willingness to do so, Employer agrees to pay to Employee the
         amount of $500,000 in the event Employee has not been named
         as Senior Vice President of the Parent and President of the
         Employer's North American Region on or before March 1, 2003;
         provided, however, that the parties may extend such period
         for an additional ninety (90) days by mutual written
         agreement. During the Term, Employee shall, if so elected or
         appointed, also accept election or appointment, and serve, as
         an officer and/or director of Employer or any of its
         affiliated entities and perform the duties appropriate
         thereto, without additional compensation other than as set
         forth herein. Employee's actions hereunder shall at all times
         be subject to the direction of the Chief Executive Officer
         and the boards of directors of Employer and Parent.

         3. The parties hereby agree that, although this Second Amendment is
effective following the date by which payment would have been due under the
terms of the First Amendment, no default or liability has accrued.

         4. The terms and provisions set forth in this Second Amendment shall
modify and supersede all inconsistent terms and provisions set forth in the
Employment Agreement and except as expressly modified and superseded by this
Second Amendment, the terms and provisions of the Employment Agreement are
ratified and confirms and shall continue in full force and effect.

         5. This Second Amendment may be executed in multiple counterparts, each
of which shall be deemed to be an original and all of which, taken together,
shall constitute one and the same agreement.

         6. This Second Amendment shall be governed by and construed in
accordance with the laws of the State of Texas, without giving effect to
principles of conflict of laws.

      [The remainder of this page intentionally left blank; signature page
                                   follows.]

                                      -2-

<PAGE>

         IN WITNESS WHEREOF, the Employer and Parent have caused this Second
Amendment to be executed by their officer/general partner thereunto duly
authorized, and Employee has signed this Second Amendment, as of the date first
set forth above.

                                   CELLSTAR LTD.
                                   By:     National Auto Center, Inc.
                                           General Partner

                                   By: /s/ Terry S. Parker
                                      ------------------------------------------

                                           Terry S. Parker
                                           Chief Executive Officer

                                   CELLSTAR CORPORATION

                                   By: /s/ Terry S. Parker
                                      ------------------------------------------

                                           Terry S. Parker
                                           Chief Executive Officer

                                   /s/ Robert Kaiser
                                   ---------------------------------------------
                                   Robert Kaiser

                                      -3-<PAGE>

                                                                    Exhibit 10.3

                     FIRST AMENDMENT TO EMPLOYMENT AGREEMENT

         THIS FIRST AMENDMENT TO EMPLOYMENT AGREEMENT is entered into effective
as of September 10, 2002, by and among CellStar Ltd. (the "Employer"), CellStar
Corporation, a Delaware corporation and parent company of Employer (the
"Parent"), and Elaine Flud Rodriguez (the "Employee").

                                    Recitals

         A. Employer, Parent and Employee have entered into that certain
Employment Agreement, effective as of January 21, 2000 (the "Employment
Agreement").

         B. The parties hereto desire to amend the Employment Agreement as
hereinafter set forth.

                                    Agreement

         NOW, THEREFORE, for and in consideration of the premises and the mutual
covenants and promises herein contained, and for other good and valuable
consideration, the receipt of which is hereby acknowledged, it is hereby agreed
as follows:

         1. Section 1.5(e)(i)(5) of the Employment Agreement is hereby deleted
in its entirety.

         2. Section 1.5(e)(i)(6) is hereby renumbered to read "Section
1.5(e)(i)(5)."

         3. Except as specifically amended by the terms hereof, all other
provisions of the Employment Agreement shall remain in full force and effect,
and the Employment Agreement, as amended hereby, is specifically hereby ratified
and reaffirmed.

                                    * * * * *

<PAGE>

         Executed as of the date first written above.

                                          CellStar Ltd.

                                          By:    National Auto Center, Inc.
                                          Title: General Partner

                                          By:    /s/    Terry S. Parker
                                                 -------------------------------
                                                 Name:  Terry S. Parker
                                                 -------------------------------
                                                 Title: Chief Executive Officer
                                                        ------------------------

                                          CellStar Corporation

                                          By:    /s/    Terry S. Parker
                                                 -------------------------------
                                                 Name:  Terry S. Parker
                                                 -------------------------------
                                                 Title: Chief Executive Officer
                                                        ------------------------

                                          /s/ Elaine Flud Rodriguez
                                          --------------------------------------
                                          Elaine Flud Rodriguez

                                       2<PAGE>

                                                                    Exhibit 10.4

                                FOURTH AMENDMENT
                                TO LOAN AGREEMENT

                  This FOURTH AMENDMENT TO LOAN AGREEMENT (this "Amendment") is
effective as of May 9th, 2002 and entered into this 29th day of July, 2002, by
and among CELLSTAR CORPORATION, a Delaware corporation ("Parent"), each of
Parent's Subsidiaries signatory hereto (together with Parent, each an individual
"Borrower," and collectively, the "Borrowers"), the lenders signatory hereto
(the "Lenders"), and FOOTHILL CAPITAL CORPORATION, in its capacity as agent (the
"Agent") for the Lenders,

                              W I T N E S S E T H:

                  WHEREAS, the Borrowers, the Lenders and the Agent have entered
into that certain Loan and Security Agreement dated as of September 28, 2001, as
amended by that certain First Amendment to Loan Agreement dated as of October
12, 2001, as further amended by that certain Second Amendment to Loan Agreement
dated as of February 11, 2002, and as further amended by that certain Third
Amendment and Waiver to Loan Agreement dated as of May 9, 2002 (as the same may
be further modified, amended, restated or supplemented from time to time, the
"Loan Agreement"), pursuant to which the Lenders have agreed to make loans and
other financial accommodations to the Borrowers from time to time; and

                  WHEREAS, prior to the date hereof, the Agent and the Lenders
amended the Loan Agreement and/or made such necessary waivers to permit the
Borrowers to implement the Restructuring Plan (as defined in the Loan Agreement)
and;

                  WHEREAS, the Borrowers have requested that the Agent and the
Lenders amend the Loan Agreement to exclude the Restructuring Expenses (as
defined in the Loan Agreement) from the definition of Fixed Charge Coverage
Ratio; and

                  WHEREAS, the Agent and the Lenders have agreed to the
requested amendment on the terms and conditions set forth herein;

                  NOW THEREFORE, in consideration of the foregoing premises and
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the parties hereto hereby agree that all capitalized terms
not otherwise defined herein shall have the meanings ascribed to such terms in
the Loan Agreement and further agree as follows:

            1.    Amendment to Section 1.1 of the Loan Agreement. Section 1.1 of
the Loan Agreement, "Definitions," is hereby modified and amended by deleting
the existing definition of "Fixed Charge Coverage Ratio" and inserting the
following definition in substitution thereof:

                  ""Fixed Charge Coverage Ratio" means, with respect to any
Person during any fiscal period and without duplication, the ratio for such
Person during such fiscal period, of (a) EBITDA, minus (i) cash capital
expenditures, minus (ii) tax expense (excluding amounts to be

<PAGE>

offset by any net operating losses) for such Person during such fiscal period,
plus cash tax refunds received in such period, plus (iii) Restructuring Expenses
incurred during such fiscal period, to (b) (i) principal payments made by such
Person on any Indebtedness during such fiscal period (other than refinancings
permitted by Section 7.1(d), payments on Advances, payments on revolving loans
under any Permitted Foreign Subsidiary Credit Facility to the extent available
to be reborrowed under such facility or cash collateral is released as a result
thereof, payments under any Permitted Foreign Subsidiary Credit Facility with an
initial term, including any permitted extensions thereof, of six (6) months or
less, cash payments on the Convertible Subordinated Debt required by Section
6.16, and refinancings of debt of a Foreign Subsidiary with the proceeds of a
credit facility obtained by another Foreign Subsidiary within the same non-U.S.
geographic region) and (ii) cash interest expense minus cash interest income
during such fiscal period."

     2.    No Other Amendments or Waivers. The execution, delivery and
effectiveness of this Amendment shall not operate as a waiver of any right,
power or remedy of the Agent or the Lenders under the Loan Agreement or any of
the other Loan Documents, nor constitute a waiver of any provision of the Loan
Agreement or any of the other Loan Documents. Except for the amendment set forth
above, the text of the Loan Agreement and all other Loan Documents shall remain
unchanged and in full force and effect and each Borrower hereby ratifies and
confirms its obligations thereunder. This Amendment shall not constitute a
modification of the Loan Agreement or a course of dealing with the Agent or the
Lenders at variance with the Loan Agreement such as to require further notice by
the Agent or the Lenders to require strict compliance with the terms of the Loan
Agreement and the other Loan Documents in the future, except as expressly set
forth herein. Each Borrower acknowledges and expressly agrees that the Agent and
the Lenders reserve the right to, and do in fact, require strict compliance with
all terms and provisions of the Loan Agreement and the other Loan Documents. The
Borrowers have no knowledge of any challenge to the Agent's or any Lenders'
claims arising under the Loan Documents, or to the effectiveness of the Loan
Documents.

     3.    Conditions Precedent to Effectiveness. This Amendment shall become
effective as of the date hereof when, and only when, the Agent shall have
received each of the following:

           (a)  fully executed and delivered counterparts of this Amendment by
the Borrowers, the Lenders and the Agent; and

           (b)  such other information, documents, instruments or approvals as
the Agent or the Agent's counsel may reasonably require.

     4.    Representations and Warranties of Borrowers. Each Borrower represents
and warrants to the Agent and the Lenders as follows:

           (a)  Each Borrower is a corporation or limited partnership organized
or formed, as the case may be, validly existing and in good standing under the
laws of the jurisdiction indicated on the signature pages hereto and in all
other jurisdictions in which the failure to be so qualified reasonably could be
expected to constitute a Material Adverse Change;

                                        2

<PAGE>

          (b) The execution, delivery, and performance by each Borrower of this
Amendment and the Loan Documents to which it is a party, as amended hereby, are
within such Borrower's corporate or partnership authority, have been duly
authorized by all necessary corporate or partnership action and do not and will
not (i) violate any provision of federal, state, or local law or regulation
applicable to such Borrower, the Governing Documents of any Borrower, or any
order, judgment, or decree of any court or other Governmental Authority binding
on any Borrower, (ii) conflict with, result in a breach of, or constitute (with
due notice or lapse of time or both) a default under any material contractual
obligation of any Borrower, (iii) result in or require the creation or
imposition of any Lien of any nature whatsoever upon any properties or assets of
any Borrower, other than Permitted Liens, or (iv) require any approval of any
Borrower's shareholders, partners, or members or any approval or consent of any
Person under any material contractual obligation of any Borrower;

          (c) The execution, delivery, and performance by each Borrower of this
Amendment and the Loan Documents to which it is a party, as amended hereby, do
not and will not require any registration with, consent, or approval of, or
notice to, or other action with or by, any Governmental Authority or other
Person;

          (d) This Amendment and each other Loan Document to which each Borrower
is a party, and all other documents contemplated hereby and thereby, when
executed and delivered by each Borrower will be the legally valid and binding
obligations of such Borrower, enforceable against each Borrower in accordance
with their respective terms, except as enforcement may be limited by equitable
principles or by bankruptcy, insolvency, reorganization, moratorium, or similar
laws relating to or limiting creditors' rights generally; and

          (e) No Default or Event of Default is existing.

     5.   Counterparts. This Amendment may be executed in multiple counterparts,
each of which shall be deemed to be an original and all of which, taken
together, shall constitute one and the same agreement. In proving this Amendment
in any judicial proceedings, it shall not be necessary to produce or account for
more than one such counterpart signed by the party against whom such enforcement
is sought. Any signatures delivered by a party by facsimile transmission shall
be deemed an original signature hereto.

     6.   Reference to and Effect on the Loan Documents. Upon the effectiveness
of this Amendment, on and after the date hereof each reference in the Loan
Agreement to "this Agreement," "hereunder," "hereof" or words of like import
referring to the Loan Agreement, and each reference in the other Loan Documents
to "the Loan Agreement" "thereunder," "thereof" or words of like import
referring to the Loan Agreement, shall mean and be a reference to the Loan
Agreement as amended hereby.

     7.   Costs, Expenses and Taxes. The Borrowers agree to pay on demand all
reasonable costs and expenses in connection with the preparation, execution, and
delivery of this Amendment and the other instruments and documents to be
delivered hereunder, including, without limitation, the reasonable fees and
out-of-pocket expenses of counsel for the Agent with respect thereto and with
respect to advising the Agent as to its rights and responsibilities hereunder
and thereunder.

                                       3

<PAGE>

     8.   Governing Law. This Amendment shall be deemed to be made pursuant to
the laws of the State of Georgia with respect to agreements made and to be
performed wholly in the State of Georgia, and shall be construed, interpreted,
performed and enforced in accordance therewith, without reference to the
conflict or choice of laws provisions thereof.

     9.   Loan Document. This Amendment shall be deemed to be a Loan Document
for all purposes.

               [The remainder of the page is intentionally blank]

                                       4

<PAGE>

                  IN WITNESS WHEREOF, the parties hereto have executed and
delivered this Amendment as of the day and year first written above.

BORROWERS:                               CELLSTAR CORPORATION,
                                         a Delaware corporation

                                         /s/ Elaine Flud Rodriguez
                                         ---------------------------------------
                                         By:    Elaine Flud Rodriguez
                                         Title: Sr. VP and General Counsel

                                         CELLSTAR, LTD., a Texas limited
                                         partnership

                                         By: National Auto Center, Inc.
                                             its General Partner

                                         /s/ Elaine Flud Rodriguez
                                         ---------------------------------------
                                         By:    Elaine Flud Rodriguez
                                         Title: Sr. VP and General Counsel

                                         NATIONAL AUTO CENTER, INC., a Delaware
                                         corporation

                                         /s/ Elaine Flud Rodriguez
                                         ---------------------------------------
                                         By:    Elaine Flud Rodriguez
                                         Title: Sr. VP and General Counsel

                                         CELLSTAR AIR SERVICES, INC., a Delaware
                                         corporation

                                         /s/ Elaine Flud Rodriguez
                                         ---------------------------------------
                                         By:    Elaine Flud Rodriguez
                                         Title: Sr. VP and General Counsel

                                       -1

<PAGE>

                                          CELLSTAR TELECOM, INC.,
                                          a Delaware corporation

                                          /s/ Elaine Flud Rodriguez
                                          -------------------------------------
                                          By:    Elaine Flud Rodriguez
                                          Title: Sr. VP and General Counsel

                                          CELLSTAR FINANCO, INC., a Delaware
                                          corporation

                                          /s/ Elaine Flud Rodriguez
                                          -------------------------------------
                                          By:    Elaine Flud Rodriguez
                                          Title: Sr. VP and General Counsel

                                          A&S AIR SERVICE, INC., a Delaware
                                          Corporation

                                          /s/ Elaine Flud Rodriguez
                                          -------------------------------------
                                          By:    Elaine Flud Rodriguez
                                          Title: Sr. VP and General Counsel

                                          CELLSTAR INTERNATIONAL CORPORATION/SA,
                                          a Delaware corporation

                                          /s/ Elaine Flud Rodriguez
                                          -------------------------------------
                                          By:    Elaine Flud Rodriguez
                                          Title: Sr. VP and General Counsel

                                          CELLSTAR FULFILLMENT, INC., a Delaware
                                          corporation

                                          /s/ Elaine Flud Rodriguez
                                          -------------------------------------
                                          By:    Elaine Flud Rodriguez
                                          Title: Sr. VP and General Counsel

                                       -2

<PAGE>

                                       CELLSTAR INTERNATIONAL CORPORATION/ASIA,
                                       a Delaware Corporation

                                       /s/ Elaine Flud Rodriguez
                                       ----------------------------------------
                                       By:    Elaine Flud Rodriguez
                                       Title: Sr. VP and General Counsel

                                       AUDIOMEX EXPORT CORP.,
                                       a Texas corporation

                                       /s/ Elaine Flud Rodriguez
                                       ----------------------------------------
                                       By:    Elaine Flud Rodriguez
                                       Title: Sr. VP and General Counsel

                                       NAC HOLDINGS, INC., a Nevada corporation

                                       /s/ Elaine Flud Rodriguez
                                       ----------------------------------------
                                       By:    Elaine Flud Rodriguez
                                       Title: President

                                       CELLSTAR GLOBAL SATELLITE SERVICES, LTD.,
                                       a Texas limited partnership

                                       By:    National Auto Center, Inc.
                                         Its: General Partner

                                       /s/ Elaine Flud Rodriguez
                                       ----------------------------------------
                                       By:    Elaine Flud Rodriguez
                                       Title: Sr. VP and General Counsel

                                       -3

<PAGE>

                                         CELLSTAR FULFILLMENT LTD., a Texas
                                         limited partnership

                                         By: CellStar Fulfillment, Inc.
                                             its General Partner

                                         /s/ Elaine Flud Rodriguez
                                         --------------------------------------
                                         By:    Elaine Flud Rodriguez
                                         Title: Sr. VP and General Counsel

                                         FLORIDA PROPERTIES, INC.,
                                         a Texas corporation

                                         /s/ Elaine Flud Rodriguez
                                         --------------------------------------
                                         By:    Elaine Flud Rodriguez
                                         Title: Sr. VP and General Counsel

AGENT AND LENDERS:                       FOOTHILL CAPITAL
                                         CORPORATION, a California corporation,
                                         as Agent and as a Lender

                                         /s/  Robert Bernier
                                         --------------------------------------
                                         By:    Robert Bernier
                                                -------------------------------
                                         Title: Vice President
                                                -------------------------------

                                         FLEET CAPITAL CORPORATION , as a Lender

                                         /s/ E. James Beckemeier
                                         --------------------------------------
                                         By:    E. James Beckemeier
                                                -------------------------------
                                         Title: Vice President
                                                -------------------------------

                                       -4

<PAGE>

                                            TEXTRON FINANCIAL CORPORATION, as a
                                            Lender

                                            /s/ Jerrold K. Brown
                                            ------------------------------------
                                            By:    Jerrold K. Brown
                                                   -----------------------------
                                            Title: Senior Vice President
                                                   -----------------------------

                                            PNC BANK NATIONAL ASSOCIATION, as a
                                            Lender

                                            /s/ Robin L. Arriola
                                            ------------------------------------
                                            By:    Robin L. Arriola
                                                   -----------------------------
                                            Title: Vice President
                                                   -----------------------------

                                       -5

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