I'm a moron, I admit. I removed my old harness on my 50 GMC (6V, positive ground) and was planning a 12V conversion,so I bought a new harness. Now plans have changed and I want to stay with the original 6V setup. Of course, my old harness is long gone. Can I use the 12V harness in a 6V setup? Sorry, don't understand watts from amps from volts. HELP! Thanks.
