Yes a aftermarket AMP gauge would use the same 2 wires as OEM amp gauge. You still have a gauge that can shut down the whole car though. If I can opt for a VOLTS gauge I will... and did so for that one reason.
When you put a volt guage in did you use one of the wires from tha original amp guage. It looks like if you used any switched 12 volt to positive side and other to a ground is all needed. Correct me if I'm wrong please. Thanks
