I just got a 1975 Evinrude 70hp outboard but the only problem is I don't have the control box (box with key/throttle). I was looking around and can't find any help anywhere so does anyone know what I can do to get this motor going? I need to connect to this red plug but no current control box model will connect to that plug. I saw something about an adapter but have no clue if that will work. All Info is much appreciated.