Nationwide Fiber Services Posted May 13, 2020 I just ordered the Tekonsha P3 and wiring harness to connect to existing wiring. I have a 4 pin kit installed in the back all ready and a kit to tow the van and use the existing lights. When using the exiting factory wiring where do you find that in the rear to put in the 7 pin plug? I am getting a Travel Travel trailer instead of towing this behind my motor-home. I all ready have 5k air bags on it and a 5.5 Onan mounted under the rear. so hopefully the wires are not above the Generator. Quote Share this post Link to post Share on other sites
