JDA.....The only issue that you will have is that the DP's don't have a brake switch on the brake pedal like a car or truck does. This makes it harder to connect the system.
You don't say what motor home you have, but some are prewired for a brake controller. I would also go with a Tekonsha because they are pretty much the industry standard. I believe they now make one with a wireless remote that doesn't require the wiring. This might be the way to go, rather than trying to connect the DP wiring.