Specific wiring harness for retrofitting a seat / rear seat heating for the following vehicles: Audi Q7 4M (from year of construction 2020) Audi Q8 4M Easy commissioning in minimum time Components Additional required: Seat heating regulator for rear seat (integrated in the climate control unit) Rear seat with integrated heating elements Selectable options: version 1 for clima PR-No.: KH5 or 9AU version 2 for clima PR-No.: KH5 or 9AU . : 9Ad or 9AE Scope of delivery: Cable set Note: Only for vehicles with rear air conditioning Replacement air conditioning unit required rear