lol....it's plugged with a screw... and some duct tape. We had no idea what it was and It wasnt hooked up to anything we could think of at the time SO....LOL thats how its been for the last 5 years i think.. lol long time but I over look a lot of stuff like that sometimes. it's 10 PM here and I have no garage to work in soo it'll be tommorow before I can actually get to it hopefully. BTW it was plugged like that When I got it. so we figured if it was running at that point FROM the Junk Yard Best Leave it Till it gets home. and we Forgot all About it till 3 days ago.