Converting 5 Wire to 4 Flat Without the Headaches
Figuring out how to go from a 5 wire to 4 flat setup can feel like trying to solve a puzzle where the pieces don't quite fit, but it's a common hurdle for anyone towing with a modern vehicle. You're probably standing behind your car right now, looking at a bundle of wires and wondering why the trailer plug only has four pins while your vehicle seems to have an extra wire hanging around. It's annoying, sure, but once you understand why that fifth wire exists and how to bypass or integrate it, the whole process gets a lot easier. ...