your dimmer switch does not need a ground. All it does is send + to either high or low beams. Sorry, I don't know off the top of my head which wires go where, should be real easy to figure out with an ohm meter though.


Mike
1955 Chevy 6400 ex-flatbed (no bed now!) sold September 2023
In the Stovebolt Gallery
1958 Chevy 6400 flatbed W/dump
In the Stovebolt Gallery
1959 Chevy Suburban Owned for almost 20 years, Daily Driver -- sold May 2016
In the Stovebolt Gallery

Sufficient unto the day is the evil thereof