I have a 1949 Chevrolet 3100 that has an older restoration. I have the engine running like a sewing machine. The next project is to tackle the wiring. The wiring is a mess. The truck has been converted to 12 volt. The turn signals don't work. The gas gauge doesn't work. The brake lights don't work. Looking under the dash is a wreck. Wires have come undone. I can't make head nor tails on what goes where. So, I think my best solution is to buy a new wiring harness and starting over. I've never tackled anything like this. Am I getting in way over my head? My biggest fear is that I will start and in the middle of it, find myself lost and not knowing what to do. I've ordered a wiring diagram manual for the truck. Can anyone give me any advice for tackling this project?