**Exhibit-10.03**FOURTH AMENDMENT     FOURTH AMENDMENT, dated as of December 18, 2007 (this “Amendment”), to the CREDITAGREEMENT dated as of June 30, 2006 (as amended, supplemented or modified from time to time, the“Credit Agreement”) among CSK AUTO, INC., the Lenders party thereto, and JPMORGAN CHASEBANK, N.A., as Administrative Agent., and LEHMAN COMMERCIAL PAPER INC. and WACHOVIA BANK, NATIONALASSOCIATION, as Co-Syndication Agents.WITNESSETH:          WHEREAS, the Company, the Administrative Agent, the Co-Syndication Agents and the Lenders areparties to the Credit Agreement;          WHEREAS, the parties hereto have agreed to amend the Credit Agreement upon the terms andconditions set forth herein;          NOW, THEREFORE, for valuable consideration, the receipt and sufficiency of which are herebyacknowledged, and in consideration of the premises contained herein, the parties hereto agree asfollows:          1. Defined Terms. Unless otherwise defined herein, capitalized terms which aredefined in the Credit Agreement are used herein as defined therein.          2. Amendments to Credit Agreement.          (a) Amendments to Section 1.01. Effective upon the Effective Date (as defined below),Section 1.01 of the Credit Agreement is hereby amended by:          (i) deleting the definition of “Applicable Rate” where it appears therein, andinserting in lieu thereof, the following new definition:          ““Applicable Rate” means, for any day, with respect to any Eurodollar Loan or ABRLoan, the applicable rate per annum set forth below under the caption “Eurodollar Spread” or “ABRSpread” as applicable, based upon the then current corporate ratings issued by Moody’s and S&P forthe Company, and provided, that if at any time either of Moody’s or S&P does not have orwithdraws its rating on the Company, for the purposes hereof, the rating shall be deemed to be lessthan B2 or B, as the case may be:       **Grid Level** **Moody’s Rating** **Eurodollar Spread** **ABR Spread**1 >B2 5.00% 4.00%2 B2 6.00% 5.00%3 <B2 7.00% 6.00%          If at any time the S&P rating for the Company is less than B then Grid Level 3 shall apply(notwithstanding the then current Moody’s rating). If at any time the S&P rating for the Company is equal to or greater than B, the current Moody’s rating shall determine the Grid Level. If any Event of Default shall have occurred andbe continuing as of any date on which the Applicable Rate would have otherwise been adjusted inaccordance with this definition, the Applicable Rate shall in no event be reduced on such date(from the Applicable Rate as in effect prior to such date) until such Event of Default is cured orwaived.”
 

 
          (ii)amending the definition of “Consolidated EBITDAR” by(a) deleting the word “and” where it appears beforeclause (xii) thereof and adding “, and” at the end ofsuch clause, and (b) by adding, immediately prior to the words“less (b)” where they appear therein, a newclause (xiii) thereto as follows:          “(xiii)any expense or write-off of deferred debt issuance costs andamendment fees related to this Agreement”          (iii)amending the definition of “Interest Expense” by deletingthe “)” where it appears after the word “Loans”therein.          (iv) inserting the following new definitions in appropriate alphabetical order:          ““Fourth Amendment” means the fourth amendment, dated as of December 18, 2007,to this Agreement.          “Fourth Amendment Effective Date” means December 18, 2007.     “PIK Component” means (i) if Grid Level 2 (as set forth in the definition ofApplicable Rate) is applicable, 0.50% per annum, or (ii) if GridLevel 3 (as set forth in the definition of Applicable Rate) is applicable, 1.00% per annum.”          (b) Amendment to Section 2.05. Section 2.05 of the Credit Agreement is hereby amendedby (i) deleting the word “first” where it appears in the second proviso thereof and inserting theword “second” in lieu thereof; and (ii) deleting the term “Third Amendment Effective Date” where itappears in the second proviso thereof and inserting “Fourth Amendment Effective Date” in lieuthereof.          (c) Amendment to Section 2.06. Section 2.06(c) of the Credit Agreement is herebyamended by adding the following new sentence at the end of such Section:          “Each prepayment of Loans under this Section prior to the second anniversary of the FourthAmendment Effective Date shall be subject to a prepayment premium equal to 1% of the Loans soprepaid, which premium shall be payable on the date of such prepayment.”          (d) Amendment to Section 2.08. Section 2.08(f) of the Credit Agreement is herebyamended so that it provides as follows:          “(f) Notwithstanding anything to the contrary in this Agreement, all borrowings, conversionsand continuations of Eurodollar Loans and all selections of Interest Periods shall be in suchamounts and be made pursuant to such elections so that, (i) after giving effect thereto, theaggregate principal amount of each Eurodollar Loan shall be equal to $5,000,000 or (subject toSection 2.13(f)), a
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whole multiple of $1,000,000 in excess thereof and (ii) no more than one Eurodollar Loan shallbe outstanding at any one time.”          (e) Amendment to Section 2.13. Section 2.13 of the Credit Agreement is hereby amendedby adding the following new clause (f) at the end of such Section:          “(f) Notwithstanding the foregoing, the Company shall have the option, with any interestaccruing on and after January 8, 2008 to pay the PIK Component included in anyinterest payment by adding such PIK Component to the principal of the Loans as of the InterestPayment Date on which such interest payment is due. The Company may exercise such option withrespect to the interest payable on any Interest Payment Date by giving irrevocable notice of such exercise tothe Administrative Agent no later than (i) in the case of interest payable on a EurodollarBorrowing, the date of the Interest Election Request for the Interest Period related to suchInterest Payment Date and (ii) in the case of interest payable on an ABR Borrowing, the later ofthe Interest Election Request related to the conversion thereof from a Eurodollar Borrowing or thelast Interest Payment Date for such ABR Borrowing, (it being understood that if no such notice isgiven all of such PIK Component shall be payable in cash). Any principal of the Loans resultingfrom interest being paid under this clause (f) by adding such interest to the principal of theLoans may be included in Eurodollar Loans without regard to the whole multiple requirement ofSection 2.08(f).”          (f) Amendment to Section 6.07. Effective upon the Effective Date, Section 6.07 of theCredit Agreement is hereby amended by deleting such Section in its entirety and inserting in lieuthereof the following new Section:          “Financial Covenants. (a) As of the end of any fiscal quarter of the Company ending on the dates set forthbelow, permit the Fixed Charge Coverage Ratio to be less than the ratio set forth opposite suchdates below:     **Quarter**   **Fixed Charge Coverage**  **Dates** **Ratio**Q3 ‘07 November 4, 2007 1.40:1.00Q4 ‘07 February 3, 2008 1.25:1.00Q1 ‘08 May 4, 2008 1.20:1.00Q2 ‘08 August 3, 2008 1.15:1.00Q3 ‘08 November 2, 2008 1.20:1.00Q4 ‘08 February 1, 2009 1.20:1.00Q1 ‘09 — maturity May 3, 2009 and anyquarter end thereafter 1.45:1.00          (b) As of the last day of the fiscal quarter ending on or about the date set forth below,permit the Leverage Ratio to be greater than the ratio set forth opposite such date below:     **Quarter** **Dates** **Leverage Ratio**Q3 ‘07 November 4, 2007 4.00:1.00Q4 ‘07 February 3, 2008 5.30:1.00Q1 ‘08 May 4, 2008 5.80:1.00Q2 ‘08 August 3, 2008 6.00:1.00Q3 ‘08 November 2, 2008 5.75:1.00Q4 ‘08 February 1, 2009 4.50:1.00Q1 ‘09 — Q3 ‘09 May 3, 2009, August 2, 2009 andNovember 1, 2009 3.25:1.00Q4 ’09 — maturity January 31, 2010 and any quarter endthereafter 3.00:1.00
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          (c) Make, or commit to make, Capital Expenditures for the Company and its Subsidiaries for thefiscal year ending (i) February 1, 2009 exceeding $25 million, or (ii) January 31, 2010 exceeding $25 million, provided that any part of the amount specified above for the fiscal yearending February 1, 2009, if not so expended during such fiscal year, may be carried over forexpenditure during the first two fiscal quarters of the fiscal year ending January 31, 2010.          3. Conditions to Effectiveness of this Amendment. This Amendment shall becomeeffective on the date (the “Effective Date”), upon which the Administrative Agent shallhave received (i) counterparts of this Amendment duly executed by the Company, the Guarantors, theAdministrative Agent and the Required Lenders, (ii) payment, for distribution to each Lender thathas signed and delivered this Amendment to the Administrative Agentby not later than 5:00 p.m.(New York City time) on December 18, 2007 (or such later time or date as agreed by the Company andthe Administrative Agent), an amendment fee equal to 1.00% of the outstanding Loans of such Lender,and (iii) payment of all fees and invoiced out-of-pocket costs and expenses of the AdministrativeAgent payable by the Company under the Credit Documents and as otherwise agreed, including withoutlimitation, the reasonable fees and expenses of counsel to the Administrative Agent.          4. Representations and Warranties; No Default; Limited Effect.          (a) Representations and Warranties. After giving effect to this Amendment, the Companyand the Guarantors hereby represent and warrant that all representations and warranties containedin the Credit Agreement and the other Credit Documents are true and correct in all materialrespects on and as of the Effective Date (unless stated to relate to a specific earlier date, inwhich case, such representations and warranties shall be true and correct in all material respectsas of such earlier date) and that no Default or Event of Default shall have occurred and becontinuing or would result from the execution and delivery of this Amendment.          (b) Limited Effect. Except as expressly modified by this Amendment, the CreditAgreement and the other Credit Documents are ratified and confirmed and are, and shall continue tobe, in full force and effect in accordance with their respective terms. Each Credit Partyacknowledges and agrees that such Credit Party is truly and justly indebted to the Lenders and theAdministrative Agent for the Obligations, without defense, counterclaim or offset of any kind, andsuch Credit Party ratifies and reaffirms the validity, enforceability and binding nature of suchObligations. The Company acknowledges and agrees that nothing in this Amendment shall constitute anindication of the Lenders’ willingness to consent to any other amendment or waiver of any otherprovision of the Credit Agreement or a waiver of any Default or Event of Default.          5. Counterparts. This Amendment may be executed by one or more of the parties to thisAmendment on any number of separate counterparts (including by telecopy), and all of saidcounterparts taken together shall be deemed to constitute one and the same instrument. A set ofthe copies of this Amendment signed by the parties hereto shall be delivered to the Company and theAdministrative Agent. The execution and delivery of this Amendment by any Lender, or by theAdministrative Agent with the consent of any Lender, shall be binding upon such Lender’s successorsand assigns (including transferees of its commitments and Loans in whole or in part prior toeffectiveness hereof) and binding in respect of all of its commitments and Loans, including anyacquired subsequent to its execution and delivery hereof and prior to the effectiveness hereof.
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          6. Acknowledgement of Guarantors. The Guarantors acknowledge and consent to all ofthe terms and conditions of this Amendment and agree that this Amendment and all documents executedin connection herewith do not operate to reduce or discharge the Guarantors’ obligations under theCredit Agreement or the other Credit Documents. The Guarantors further acknowledge and agree thatthe Guarantors have no claims, counterclaims, offsets, or defenses (other than payment) to theCredit Documents and the performance of the Guarantors’ obligations thereunder or if the Guarantorsdid have any such claims, counterclaims, offsets or defenses (other than payment) to the CreditDocuments or any transaction related to the Credit Documents, the same are hereby waived,relinquished and released in consideration of execution and delivery of this Amendment.          7. Credit Document. This Amendment is a Credit Document executed pursuant to theCredit Agreement and shall (unless otherwise expressly indicated herein) be construed, administeredand applied in accordance with the terms and provisions of the Credit Agreement.          8. GOVERNING LAW. THIS AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES UNDERTHIS AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OFTHE STATE OF NEW YORK.*   *   *   *   *
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     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed and deliveredby their respective duly authorized officers as of the date first above written.