Amp gauge shunt
Mike69cuda, on my Power Wagon the amp guage hardly moved, even when the HID off-road lights were switched on/off. I removed one brass shunt at a time to increase the neddle movement. Still the same concern fire. Resistance=heat=fire.
Crackedback, a volt guage in the cigarette light would work. My dash frame had so many holes I got carried away welding them up and eliminated the ashtray looks a lot cleaner!