Part number is RAA623, I bought mine from Barbagallos in Osborne Park for $429 and fitted it myself using the wiring colours from the forum here, I can't remember where I saw the wiring chart but it gave the colour that landrover provide on the vehicle and the alternate colour wire to splice it into on the towbar kit. There is a plug located behind a small plastic cover in the rear of the drivers side rear wheel arch, it's easy to get to - only two screws and I just cut the plug off and wired the towbar into it.

