I am the second owner. I have had the car for about a year and a half, with no real electrical problems. I checked the wiring harness that connects to each of the reverse lamps and they are both stock and in good condition. I can see no evidence of any melting sockets or anything else for that matter. Does anyone else have any ideas of things to check? What's the best way to isolate where in the line is a ground? Does anyone know the specific path that the reverse wiring takes start to finish. I looked as best I could from the back of the fuse box and down the side of the car and in the trunk lid.