Complete kit for upgrading the original PDC parking aid for Audi Q7 4L This harness connects the PDC controller to the central electronics module and the warning buzzer Scope of delivery: Wiring harness Notes: To use the full functionality of the rear PDC system, you will need two more sets of cables: Wiring harness for the rear sensors (part number 37925) Wiring harness for the PDC controller to the central electronics (part number 36244) To add the full functionality of the front PDC system, you will need two more sets of cables: Wiring harness for the front sensors (part number 34540) Wiring harness from the Park Pilot controller to the front sensors (part number 33924)