I bought a hobo house boat with a 60 hp merc. The control box doesn't have a tilt/trim button. I had to go into the outboard motor and cross circuit the wires to get the tilt motor to lift, so that I could trailer it. The remote control box is single lever and has a "multi-pin" cable with a separate "ground" wire that comes off the multi pin cable.Is this extra cable for trim or what? Any hints? toldland