I NEED A PART NO.the part i am looking for is about one inch and 1/4 inch long and round , sizeof a quarter and has 4 prongs on it and plugs into the other half male and female and has 4 wires running out of it one of the wires is a ground wire. any way it started sparking and started to smoke a little so i unplug it. can any one help? thanks Ron.