A body Dash Conversion
I think I paid $500 for my painless whole car harness but you have to know what you are doing, everything is labeled, I am a mechanic and work with wiring most every day and some parts of it were difficult for me! the updated harness is very nice though. my harness was cracked and in poor shape! could have started a fire! I dont know about replacing the amp meter to a volt guage in a rally dash though, I am sure someone has done it! as you can see I have wires every ware still! I am getting there though, Good luck, Jared