Factory Installed Brake Controllers

I hated the integrated controller until I learned a bit about it. On my GMC Yukon XL it works off the hydraulic pressure but does integrate with the computer. It also needs to be hooked up with the key off. I've never had to do that with any other controller but the power surge when connected running/key on triggered a failure that had to be reset. The dealer who showed me this couldn't understand why every controller didn't need to do this. Also the boost needs to be about 8-8.5.

After I learned about and used it I love it. Better than my P3 in my truck.