I have 12 volts going to the dimmer and 4 to 11 volts coming out. It's got be a ground. Marker,head lights,blinker lights and license plate light work. I guess they are on the #3 fuse circuit. I'm looking for the ground wires where you said and it's not making sense, Can you give me a clue? The bulb fixtures are insulated and not self grounding. It doesn't look like all individual gauges have there own ground.
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