Trailer brake controllers are not vehicle-specific so pretty much any controller could be installed in any vehicle.
All controllers use the same wiring colors and connections: the white wire is ground and connects to the battery negative post; the black wire is +12V power to operate the controller and this connects to the battery + post through a 30-amp breaker; the red wire takes in the brake light switch signal (taken from the cold side of the brake light switch); and the blue wire... view full answer...
Typically, as long as the distance between the controller and the smartphone being used as the display isn't more than 40 feet apart, the # C51180 Echo would work. But because we're talking a 36 foot motorhome likely with at least one interior partition, Curt has told me in the past that the Echo wouldn't be a good choice for your application as they couldn't guarantee the wireless connection would be reliable.
Your best bet would be to use a hardwired controller like the Tekonsha P3,... view full answer...