Spitfire is a 1979 Federal, no overdrive, 12v neg, etc. There is a 3-wire wire connector (photo) that just dead ends. Wires are all 12v pos with key ON, they are white with blue stripe, pure white, and white with gray stripe. Any idea what they're for? I'm looking for a hot-with-ignition 12v source for my electric choke and they're looking like a good candiates. Thoughts? Cave