Hello Folks I hope all is well. I am installing a new wiring harness from Rebel Wire and I am having a hard time wrapping my head around the use of the exciter wire. The exciter wire goes straight to the fuse block. From what I can understand is that it simply relays voltage back to the alternator to correct for voltage drop? I have the 3 wire alternator. Before, I just grounded one of the field posts to ground and it worked fine. But now that I am completely replacing all the wiring I am wondering if the use of an exciter wire and possibly a later era regulator would have any benefits. What are your thoughts? Details: 1966 Barracuda 273 Early Style Regulator 3-Pin Alternator-50Amps Possibly moving to LED headlights and Electric Cooling Fan later on. Thanks ETA: I found the answer here Mopar Charging Systems. I guess the exciter wire is just for the alts with the 3 wires and internal regulator.