Noob question; Installing intellitronix digital gauge, (tw: LOTS OF DUMB QUESTIONS)

67Dart273 said
Neither of that should affect headlights

Headlights path:

Power to the headlight switch comes DIRECT off the ammeter "welded splice" in the big black ammeter wire behind the cluster. That goes direct to the HL switch and powers ONLY the headlights, nothing else. There is a breaker in/ on the light switch. With the HL switch on, the HL power goes down to the floor dimmer switch, where it comes out either for high or low beams, and then runs out through the firewall connector to the lamps

CHECK THE GROUNDING on the front lamps. Some years, all the wires hook to one grounding lug up near/ on the radiator support

Ok gotcha, I thought maybe the rheostat or the printed circuit board somehow have some sort of circuit that completes with the dash when the headlight switch is pulled.

As for the left turn signal? The right turn signal works fine. I am thinking maybe I should use the other light green wire to hook up to the dash (there are two with the same pin).

Same with the dimmer.