on mine there are two wires from that area, one goes to the "+" the other goes to the amp warning light. The thing is there is no way to tell them appart, only that one way works (wire "A" to "+" WIre "B" to amp light)and the other way doesn't ( wire "A" to amp light wire "B" to "+") Telling "A" from "B" is the problem and even the rebuild guys just said try both combinations, one works the other doesn't.