Also, you had originally asked where the alternator wire runs. On this 72 car it starts at the alternator as a black wire and goes up to the ammeter. Then it goes to the fuse block. In the photo, label 1 is the black wire at the alternator, 2 is the black wire mated with the red wire where the ammeter normally is (the wires are taped together in the photo), and 3 is where the red wire joins the fuse block.
