Billy, welcome to iRV2.com. We are glad to have you join us here and we look forward to reading of your adventures and experiences. I believe you will find you can only install the OEM in the dash brake controller on the newest of vehicles. The harnesss is located behind the radio. We found this out the hard way a few weeks back an finally called Ford Motor Co. to get the answer. Good luck and keep us posted.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7