Specific wiring for retrofitting the PDC (Park Distance Control) This harness connects the PDC control unit to the dashboard switch and the front bumper harness. Scope of delivery: Wiring harness Note: To use all the features of the front PDC system, you will need two more sets of cables: Harness for the front sensors (part number 39860) Harness for the Park Pilot controller (part number 39858) To add all the features of the rear PDC system, you will need two more sets of cables: Harness for the rear sensors (part number 39859) Harness for the Park Pilot controller (part number 39858)