I'm trying to build a trailer converter for a 4 post flat trailer plug which is basically a 3 wire setup running the tail, brake and turn signals so I am trying to build a circuit to use the existing harness but change the lights so I have 1 tail, 1 brake, 1 turn light per side.
I apologize for asking for so much and I know I can build all of it once someone suggests because im struggling to determine which circuits to use, for example: i'm not sure how to take a signal {1 wire} that will run the brake light tail light and a turn signal light so they function as they should - function normal. Thank you for any positive information
