1. Main panel to instruments 2. Main panel to headlight/turn signal farthest from the main panel 3. Main panel to taillight farthest from main panel 4. Alternator/charging system to main panel 5.

There was a time when a hot rodder copied a basic wiring diagram out of a motor's manual and bought the switches, relays, and connectors at the local auto parts store. The wire was what was available ...