Originally Posted by Overboost

You will be prewired inside the rear compartment. All you need is the PDC sensors and harness for the rear bumper. It has a grommet that goes through the body behind the bumper and plugs in a couple of inches from where it passes through. You will also be prewired in the front as well. Just need that harness as well.

One more thing, you will need the PDC module as well but all the 3 plugs are there and prewired. Just drop in the module and connect the harnesses.

If you are retrofitting PDC on a non PDC X5, you will need a rear speaker/gong and a console strip below your HVAC controls with a PDC button to have a LED light that will display when the system is active and to turn it on/off.

If you are doing rear only, you will need to code out the front PDC sensors.

I started my retrofit with rear only (I have front and rear now) so I can help you with everything.