My 05 has the HD trailering package. The only info that I can find on trailer brakes is a section in the owners manual that talks about splicing off the hydraulics near the master cylinder. I know that new trailers (over
2000lbs) are equipped with electric brakes. Since I have the 7 pin plug already wired in the harness will I still need to purchase the separate brake box and mount the ugly thing in my truck? OR did GM put provisions in the harness to run the trailer brakes?Thanks
Eightupman