I have had this quad for 30 years now. I began taking it apart to clean it up and paint it eight years ago, it has been sitting since. Now I am trying to get it up and running again. I bought a brand new battery and hooked it up when I turned the key on I had no lights or rather nothing happening at all. I tested the battery and checked numerous areas for power and there were several places with power including the battery. The one area I do not have power is, near the front end. I have a plug that isn’t connected, please see attached photo. I have no other wires that are just hanging out there. A friend used a paper clip on the one plug that isnt attached to anything in the middle of the photo (white) and when he did this the lights came on by the ignition and the starter kept clicking over like the quad would normally try to start, which was a nice sound to hear. Any assistance is greatly appreciated. Thanks