Danchuk 1957 Chevy Headlight Wiring Harness When you are replacing your wiring or updating your headlights to H-4 or better don't forget to replace this harnesss to be sure you have the juice you need. Danchuk # 443 is a headlight harness will work on any 1957 classic Chevy. Danchuk has the largest selection of quality 55, 56, 57 parts for your classic Chevy 57 chevy headlight wiring | The H.A.M.B. wwwpyjournal››The Hokey Ass Message BoardFeb 14, 20071>Red is Battery and hot all the time. It is unfused going to the headlight switch but the switch has a fuse in it for the headlights. 2>Orange is fused 12 volts hot all the time. It is connected to several circuits, including supplying power to the brake light switch, but on the headlight switch it doesn't do anything for the brakes.