I have a 2000 Four Winns Horizon 180. Running the boat today and stopped for a few minutes and turning the boat off. When I tried to start, got the warning horn going off steady in the engine compartment. Before stopping, oil pressure was fine, temp was fine. Boat was in nuetral and kill switch in place. Anyone know where to start and what exactly is connected to the warning horn at the motor? I do have power to everything on the boat. Thanks for any help you can provide!