I have a 1995 suburban with a flat 4 prong plug , I recently purchased a car trailer with brakes requiring a 7 point . I also purchased a seperate brake controler,harness and 7 point plug. after doing a little looking around on my truck I noticed wires in the factory harness already on the truck . My question is do I still have to hook up the seperate trailer brake controller or is there a way to work this off the existing brake system without it ? I havent noticed a seperate controller on newer trucks it appears to be just a plug and go system ?
- posted
17 years ago