[TonyMadrid]

Most cars today use voltmeters. Even if you look through the catalogs like Summit or Jegs, you'll see that they hardly list any ammeters.

I'm using a VM and the hookup is simple. Run a switched 12V hot to the positive terminal of the VM and run the negative terminal to a good ground.

By the way, if you're using SW gauges for your gauge light you have to run a separate ground wire from the gauge housing to a ground as the negative terminal of the gauge is insulated from the gauge housing and gauge light push-in housing.

Good Luck,

Tony