I checked it all with a multi-meter and it seems to me that the only thing conductive here is the black stuff that's coming off, it seems that the lights make contact directly with the black material. I do seem to be missing a wire from the plug bit that goes to the temp gauge, may answer why the P.O. had 2 temp gauges. I did find a bad ground I had missed before, but I think that the black stuff is the only conductive bit there. I may be wrong but on any section of the "copper" bit beneath was all open line.
