VetteVet thanks, this is the stuff i'm looking for. Clean, simple, well explained diagrams and pictures.
Here is a better picture of my set up, and my parts list:
Harness
Regulator
Relay
I will have to double check everything but i think it's set up the way your diagram shows. The only thing i'm uncertain about is inside the cab, from the firewall connector to the ignition switch. When we hooked it all up and turned the key, the engine cranked so I haven't investigated under the dash too far.
One of the previous owners did some "rewiring" and tried adding an ammeter, but i haven't tried to wire it in yet. I'll try to do some more trouble shooting with this new information and let you know how it goes.
Thanks again