Howard, does the RW have Disc Brakes?? If so, I agree, previous owner's way to make the Hydraulic pump work with their TV. Correct way is to install a CAM Interface module in the brake controller line before the Pump.
Michelle & Ann
2018 Chevy 3500HD Crew Cab High Country DRW, D/A, 2016 RW39MB, Dual ACs, Auto Level, Auto Sat Dish, Stack W/D, King Sleep #, 17.5" Sailuns w/Disc, MORryde IS & Pin, Comfort Ride Hitch, 5.5 Onan, Res Fridge & Induction Cook Top