EXHIBIT 10.25.2 LETTER OF CREDIT NUMBER F842227 AMENDMENT DATE: SEPTEMBER 20, 2006 APPLICANT: CAI, L.P. 3295 COLLEGE STREET BEAUMONT, TX 77701 CONN FUNDING II, LP 3295 COLLEGE STREET BEAUMONT, TX 77701 BENEFICIARY: WELLS FARGO BANK MINNESOTA, NATIONAL ASSOCIATION, AS TRUSTEE MAC N9311-161, SIXTH STREET AND MARQUETTE AVENUE MINNEAPOLIS, MN 55479 THIS AMENDMENT IS TO BE CONSIDERED AS PART OF THE ABOVE MENTIONED CREDIT AND MUST BE ATTACHED THERETO. AMENDMENT NO. 006 THERE IS AN INCREASE IN LETTER OF CREDIT AMOUNT OF 10,000,000.00 U.S. DOLLARS FOR A NEW TOTAL OF 20,000,000.00 U.S. DOLLARS. ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED. PLEASE DIRECT ALL INQUIRIES TO: SUNTRUST BANK ATTN: STANDBY LETTER OF CREDIT DEPARTMENT 25 PARK PLACE, 16TH FLOOR, MC 3706 ATLANTA, GEORGIA 30303 PHONE: 800-951-7847 OPTION 3. SINCERELY, SUNTRUST BANK \