Specific cable set for retrofitting the original detachable towbar (AHK) for Audi Q4 F4 You receive all functions as installed at the factory Scope of delivery: Cable set Notes: After assembly , the control units must be coded using a diagnostic tool For a complete retrofit, additional hardware components are required (original trailer hitch, original trailer control unit, etc.) We would be happy to send you an offer for the complete retrofitting of a trailer hitch Currently, retrofitting is not possible for vehicles from 25.11.2023