What is the switch for ? the wire goes in a bunch of wires and i cant trace it , it does nothing on panel , or any where on vessel i can see , it has 12 volts to it and the lil red light comes on , showing it is on , but i dont know what its activating , i dont see no lights under console etc , so what is this cockpit switch normally used for ? i bought the boat second hand and the owner didint know either. i trace the wire far as i could but i didnt want to start undoing everything. thx for any thoughts.