I have a 140 hp Merc with all the controls but there are some things disconnected. I have the battery connections and the cable to the control. Three wires come out to what I would think to be a fuse panel (panel not there). Can someone tell me which wire goes where from the motor control box ? Also do the trim cables hook directly to the battery ? Lastly I have worked on cars before but the grounding system on a boat looks different, are all grounds based on the negative terminal of the battery ?
