Wiring in a volts gauge.

Well, so far all I have done is connect the two wires on the ammeter together. I'm just trying to wrap my head around it before going any further.

When I get into wiring detail my grey matter oozes out my ears, lol.

So if I run the wire from the alt. to the starter relay and I connect the black and red wire that was on the ammeter and run that to the starter relay that should complete my circuit, if I'm understanding this right, right?

LOL, yes, but you want to cut them and add new wire at the bulkhead inside the car after connecting the ammeter wires together, then run them straight to a fusible link then the relay