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?