I needed to know if it is a good idea to remove all the existing wiring and replace them with all ne wire harnesses or should I try and figure out what everything goes to and use what is there. I have a thing about wires that look messy or wires that exist with no real purpose. I am wire/electrical illiterate. Would it help to have a pro look at it? What do I look for when I am trying to get someone to redo the wiring? Thanks!o No: