Specific wiring for retrofitting the original swivel trailer hitch for Audi A6 4F all functions as factory installed Scope of delivery: Cable set with 13-pin trailer socket Notes: After installation, the control equipment must be coded Example towbar 4F0800491C (PR-No.: 1BA, 1BB, 1BD, 1BE, 1BR, 1BV) 4F0800491D (PR-No.: 1BK) Control unit 4F0907383 Only for vehicles without trailer preparation (PR-No.: 1D0)