I had 3 random cables in the left hand cubby hole in my boot. One of them went through the rear vent and in to the bumper area. So I removed the bumper to find out what that cable was and it turned out to be the aerial for the tracker. I traced it back to the other 2 cables, which then went on to the tracker. Since the boot was ripped apart I thought it was a good time to remove the tracker since I'm not going to use it. Bumper off with the aerial. Tracker removed. One tracker. One tracker apart. In the process of fitting the bumper back I broke the soft close function of the boot and found out that the right bumper bracket is broken. It feels like (I can't see it) that someone sheared all the teeth of the gear.