Specific wiring for upgrading the original swivel towbar for VW Golf 7 all functions factory installed Selectable options: Version 1 for control unit 5Q0907383A Version 2 for control unit 5Q0907383B, C, D, F, G, H, K, N, M Scope of delivery: Cable set Notes: After installation, the control units must be coded by coding dongle 42239 towbar, control unit, loading edge, wiring harness and bumper are also required We will be happy to make you an offer for the complete upgrade