Currently have an Amp guage in my 57s stock generator electrical system. It has been suggested by some that a Volt meter is a better choice, requiring less heavy wiring etc.. Currently it has 10 G wiring from the solenoid, then along the cross member & on thru to the under dash guage & then back to the regulator. Roughly 18' or more of wire. As wired it does not show a minus draw either. So, is a Volt meter the better way to go? And what is the best way to wire in a volt meter? Thanks

Paul