What harnesses did you put in? All of the amp gauge wiring is in the dash and FWD lamp harnesses. The gauge will work with a 1 wire alt as long as the output terminal is wired to the factory wire (10g red). If you leave any wires unconnected, cover them with tape or something as they are not fused (only fusible links). I would not connect them together either.i put in a american auto wire kit and will be using the stock 70 dash with the gauges. my question is will leaving the two wires for the amp gauge undone be ok or should they be hooked to them self. the motor has a one-wire alterntor if that helps any.
Yes. I would either connect the amp gauge proberly, or leave the wires disconnected. If you want to connect the amp gauge, i would add 5 amp fuses at both ends of the amp gauge wiring (near the 4 way splice or horn relay and the junction block). This will protect the gauge, wiring, and the copper trace on the PCB board.did see that one wire dirgram posted would that also go for my amp gauge?