Re: Rear electrics
Actually I had similar issue with my 166. In mine's, the boot lid light did not come on at all. I have stripped the boot lid lining, disconnected the junction plug under the rear shelf and ripped out the whole loom from boot lid. The loom was shattered in pieces, only several cables were ok. It is possible to reach the junction plug from one of the rear speakers hole, there is no need to take out the rear seats or rear shelf. I have also replaced parts of the wires, but I’ am going to change the whole loom in future - per catalogue info - it shouldn't be very expensive. To make it easier to reach parts of the wires places in flexible tube – replace the looms material insulation with plastic one – it will slide much easier inside the tube.