Specific cable kit for upgrading the original swivel trailer hitch (AHK) for VW ID4 E21, ID5 E39, ID-Buzz EB all functions as installed at the factory Scope of delivery: cable set Notes: After installation, the car must be coded using the coding dongle 42239 For a complete upgrade, additional hardware components are required (original trailer hitch, original trailer control unit, etc.) We will be happy to make you an offer for the complete upgrade