Need Alternator help

Actually originally the no1 terminal of the Delco went to the dash light/ and resistor which allowed the thing to charge if the lamp blew out. To do those right, you need to have a series diode. Original owner may have changed things..........if he jumpered the old Mopare OEM VR wires together, that would end up with a small green that comes on with ignition and which arrives at the alternator. That is what he used for excitation. The old wireing path was ----blue "ignition run" coming out of the firewall----fed the coil ballast resistor-------and branched off and fed the old regulator.........through the regulator -------out on green----and to the OEM field terminal of the alternator

In other words there is a small green origiinally ended up at the OEM alternator and a larger green/red? that was for horns

IF that is what he did you should be able to use same wire for the powermaster excitation if that is what they want, there

You have a link or photo to the Powermaster wiring hookup?