I have a 2000 Glastron 205 GX with a 5.0 L Volvo engine & Volvo SX outdrive. My trim suddenly quit working. If I go back by the trim unit and move the wire coming off the trim motor is works. The wire has a coupler on it and then snakes back behind the trim unit. I can't tell if it plugs into another coupler or is wired directly into the wiring harness. I could sure use some advice.