having a problem with my charging system in my 73. first i know battery is good. tried new altenator and regulator still not charging. this car has gauges not light. my question is on alt. there are only two wires currently going to alt aren't there supposed to be three? when i changed alt there was what i beleived to be a cap only on one of push on connectors but i believe that it should be a wire that has since disappeared. any one run into this situation before and does anyone know where the wires that come off alt go ? any help is wonderful thanks in advance.