Isn't one of the original wires for the generator a switched power source?
The internal self igniting regulators are around $15 or $20, and make hooking up alts way easer. On a recent job I did, we used the factory heavy generator wire hooked to the old regulator Batt. terminal along with the original wire coming from the cab. The alternator charges great, uses stock wires and the amp gauge worked as it should.
Joe
