Specific wiring for retrofitting a PDC Park Distance Control in the following vehicles: Audi A4 B6 Audi A4 B7 Audi A4 8H Cabrio This cable set connects the PDC controller to the sensors in the rear bumper The opening in the body is already available at the factory, so there is no need to drill new holes Scope of delivery: Cable set Notes: A total of four cable sets are required if you want to be able to use the full range of functions of a PDC The Audi A4 B6 was factory-equipped with a parking aid at the front and rear