Ok..... I usually tow my 6000 lb trailer without any brakes on my dual axle car hauler. I am rebuilding my trailer and am installing electric brakes one axle. Does anyone know who sells a brake controller that will plug and play with our RMW? And, I currently have a 4 wire plug and play for my 95 RMW........ but I have not seen anything that would support trailer brakes.. the blue 5th wire.... Any help would be appreciated....