Specific wiring harness for retrofitting a Park Distance Control PDC for Audi A6 4B This wiring harness connects the sensors in the front bumper to the wiring from the control unit Scope of delivery: Wiring harness Notes: To use all the functions of a PDC system, you will need 4 cables: Wiring harness for retrofitting a PDC at the rear Wiring harness for the Park Pilot sensors rear bumper (item number: 33890) Wiring harness for the Park Pilot control unit - on-board network (item number: 33891) Wiring harness for retrofitting a PDC at the front: Wiring harness for the Park Pilot control unit - front (item number: 33889) Wiring harness for the Park Pilot sensors front bumper (item number: 34515) The AUDI A6 4B is equipped with a PDC at the front and in the back.