I'm working on installing fuel injection on my stock '72 302 with a RJM type harness. So far so good but I can't figure out where I would connect the lead that is meant for the alternator. I'm assuming that if I had a mustang alternator, 2G?, this would be obvious and it would just plug into the back of the alternator but I have the original style alternator with the external regulator on the fender. The directions are really ambiguous with this connection. Anybody have any ideas on this. Thanks for any help.