EXHIBIT 10O

                               FIRST AMENDMENT TO
                              REVOLVING CREDIT AND
                               SECURITY AGREEMENT

      THIS FIRST  AMENDMENT TO REVOLVING  CREDIT AND  SECURITY  AGREEMENT  (this
"First  Amendment")  executed and  delivered as of June 29, 2004, by and between
WACHOVIA  BANK,  National  Association  (?Bank?),  and among  AUTOINFO,  INC., a
Delaware  corporation,  SUNTECK  TRANSPORT CO., INC., a Florida  corporation and
SUNTECK TRANSPORT & LOGISTICS,  INC., a Florida corporation  (collectively,  the
"Borrower").

                                    RECITALS:

      A. On May 23, 2003, Borrower and Bank, executed and delivered that certain
Revolving Credit and Security  Agreement (the Credit  Agreement) under the terms
of which Bank provided a line of credit to Borrower in the amount of $1,500,000.

      B. The parties  desire to make certain  changes to the terms of the Credit
Agreement as described herein;

      NOW,  THEREFORE,  in  consideration of the agreements set forth herein and
other good and valuable consideration, the Bank and the Borrower hereby agree as
follows:

1.  Definitions.  All capitalized terms used herein shall have the same meanings
as used  in the  Credit  Agreement,  unless  otherwise  defined  in  this  First
Amendment and the rules of construction  set forth in the Credit Agreement shall
apply to this First  Amendment.  Any  reference  herein to the Credit  Agreement
shall mean the Credit Agreement as amended by this First Amendment.

2. Amendments.

            A. Eligible Accounts. The definition of Eligible Accounts in Exhibit
            1 to the Credit  Agreement is hereby amended and restated to read as
            follows:

            (i)   Subsection  (b) of the  definition  of  Eligible  Accounts  is
                  amended and restated to read as follows: (b) all Accounts owed
                  by an Account  Debtor if more than fifty  percent (50%) of the
                  Accounts  owed by such  Account  Debtor to Borrower are deemed
                  ineligible hereunder;

            (ii)  Subsection  (m) of the  definition  of  Eligible  Accounts  is
                  amended  and  restated to read as follows:  (m)  Accounts  for
                  which  the  total  of all  Accounts  from  an  Account  Debtor
                  (together  with the  Affiliates of the Account  Debtor) exceed
                  ten percent  (10%) of the total  Accounts of Borrower  (twenty
                  percent (20%) with respect to MegaSys, Inc.), to the extent of
                  such excess;

            B.    Maximum Loan Amount.  The definition of Maximum Loan Amount in
                  Exhibit  1 to the  Credit  Agreement  is  hereby  amended  and
                  restated to read as follows:

                  Maximum Loan Amount  means Two Million  Five Hundred  Thousand
                  Dollars ($2,500,000).

            C. Termination Date. The definition of Termination Date in Exhibit 1
            to the Credit  Agreement  is hereby  amended and restated to read as
            follows:

                  "Termination  Date"  means June 30, 2005  (unless  extended in
                  writing by Bank).

            D.  Delivery of Certain  Financial  Information  The  references  to
            "fifteen  (15) days" in  Sub-Sections  5.6 (a) and (f) of the Credit
            Agreement  are hereby  deleted and  replaced by "twenty  (20) days".
            Subsection  5.6(b)  of the  Credit  Agreement  is  amended  by : (i)

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            deleting the  reference to "fifteen (15) days" and inserting it with
            "thirty (30) days", and (ii) deleting the reference to "monthly" and
            replacing it with "quarterly".

            E. Other Covenants. Section 7 of the Credit Agreement entitled Other
            Covenants of Borrower is hereby amended as follows:

            (i)   Current Ratio.  Add the following as a new sentence at the end
                  of the section entitled  Current Ratio:  "Current Ratio" shall
                  mean the ratio of current assets to current liabilities.  This
                  ratio shall be calculated annually.

            (ii)  Fixed Charge Coverage Ratio.  In the section  entitled,  Fixed
                  Charge  Coverage Ratio delete "This covenant shall be computed
                  quarterly  on a rolling four  quarters  basis" and insert as a
                  replacement: "This covenant shall be calculated annually".

            (iii) Total  Liabilities  to  Effective  Net  Worth  Ratio.  Add the
                  following as a new sentence at the end of the section entitled
                  "Total Liabilities to Effective Net Worth Ratio":  "This ratio
                  shall be calculated annually".

            (iv)  Capital Expenditures Requirement. Add the following at the end
                  of the section  entitled  Capital  Expenditures  Requirement :
                  "This covenant shall be calculated annually".

            (v)   Subordinated  Debt.  Delete the section  titled  "Subordinated
                  Debt" from Section 7 of the Credit Agreement.

3. Effectiveness.  The effectiveness of this First Amendment shall be subject to
the prior or concurrent  satisfaction  of each of the  conditions  precedent set
forth in this Section 3:

      a. Delivery of Documents. The Bank shall have received counterparts of the
following documents executed by the Borrower and dated as of the date hereof:

            (i)   this First Amendment;

            (ii)  that certain Renewal  Revolving  Promissory Note dated of even
                  date herewith

            (iii) such documents,  certificates,  affidavits and acknowledgments
                  as may be reasonably  required by the Bank to  consummate  the
                  transaction contemplated by this First Amendment.

      b.    Other Conditions Precedent. Borrower shall pay Bank a commitment fee
            of  $25,000.00  plus  Banks  reasonable  attorneys  fees  and  costs
            incurred in connection  with the  transaction  contemplated  by this
            First Amendment.

4. No Event of Default/Representations and Warranties. The Borrower certifies to
the Bank that Borrower has kept,  observed,  performed  and  fulfilled  each and
every covenant,  provision and condition of the Credit  Agreement and each other
Loan Document to which  Borrower is a party on its part to be performed and that
no Event of Default  has  occurred  with  respect to  Borrower  under the Credit
Agreement or any other Loan Document to which Borrower is a party.  The Borrower
further certifies to Bank that, both immediately  before and after giving effect
to this First Amendment, the representations and warranties set forth in Article
4 of the Credit Agreement with respect to the Borrower,  are true and correct in
all material respects on and as of the date of this First Amendment.

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5. Credit  Agreement  Confirmed.  This First  Amendment shall be deemed to be an
amendment to the Credit Agreement,  and the Credit Agreement, as amended hereby,
is hereby ratified, approved and confirmed in each and every respect.

6. Miscellaneous.

      a.  Invalidity.  In the  event  that  any one or  more  of the  provisions
contained  in this First  Amendment  shall,  for any  reason,  be held  invalid,
illegal  or  unenforceable  in  any  respect,  such  invalidity,  illegality  or
unenforceability shall not affect any other provision of this First Amendment.

      b.  Counterparts.   This  First  Amendment  may  be  executed  in  several
counterparts,  and it shall not be necessary  that the signatures of all parties
hereto be contained on any one counterpart  hereof;  each  counterpart  shall be
deemed an original,  but all of which together shall constitute one and the same
instrument.

      c. Reference.  From and after the effective date hereof, all references to
the Credit Agreement shall be deemed to be references to the Credit Agreement as
amended by this First Amendment.

      d.  Governing  Law.  This  First   Amendment  shall  be  governed  by  and
interpreted and enforced in accordance with the laws of the State of Florida.

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      IN WITNESS WHEREOF, the parties hereto have caused this First Amendment to
be duly executed and delivered as of the date first above written.

                                            "BANK"

                                            WACHOVIA BANK, NATIONAL ASSOCIATION


                                            By: David C. Jackson
                                                ----------------
                                            Name:   David C. Jackson
                                            Title:   Vice President

                                            "BORROWER"

                                             AutoInfo, Inc.


                                                 By: William I. Wunderlich
                                                     ---------------------
                                                 Name: William I. Wunderlich
                                                 Its: Chief Financial Officer

Sunteck Transport Co., Inc.

                                                 By: William I. Wunderlich
                                                     ---------------------
                                                 Name: William I. Wunderlich
                                                 Its: Chief Financial Officer

Sunteck Transport & Logistics, Inc.

                                                 By: William I. Wunderlich
                                                     ---------------------
                                                 Name: William I. Wunderlich
                                                 Its:  Chief Financial Officer