Hi I’m trying to put two seats in my motorhome , the only electric I’m trying to get is the tilt back rest , not needing anything else , can anyone advise me how to get this to work ? I have a spare 12v battery next to seats so was hoping to just wire up to that to the tilt part of the seat , I have the buttons on side of seat for this , but carnt find any wording diagram or colour wireing to help , thanks so much for any advice you can offer me ,