No time to search?! How long does it take. This has been covered... So try searching!

You need a multimedia adapter either from Kufatec or from Fleabay (~£100) You need the camera, either from a Q7 (£££) or fashion your own from Fleabay in to the boot release handle.

Then you need to reprogram the car.

There was a good writeup on navplus.us but I've lost my link... Isaac Hunt may be able to help.