Cool. Yes, a ground connected to a painted part of the body is definitely a bad thing. If you only have that ground to work with however, just grind down the paint until bare metal is exposed, and that may solve your problems.
:chuckles: I use electrical tape on just about everything on my car. I got like 10 rolls laying around. Good electrical tape will fix wires, but posi-locks or soldering are the best ways to hold wires together, unless you're talking about exposed wires, yeah just electrical tape the shit out of them . Posi-locks can be purchased at autozone, but they're a bit expensive, like $7 for 15! You won't need to get a new harness unless multiple wires are damaged, like my car: all the wires leading to the passenger lights are destroyed, and one wire has shorted all the way to the fuse box! But somehow the car still runs fine! I just ghetto rigged the passenger headlights by splicing them into the driver's side, no problems, no dimming lights. :chuckles: