...and it won't start.? everything in the car turns on when I turn the key, it just won't even try to turn over. I opened the hood and noticed that there was a blue wire coming off the battery, that wasn't plugged into anything. Its got a white plastic thing around it and a copper coil coming out of the end of the wire. its definitely a hot wire too, I can't figure out where it would be going to and if thats why the car won't start...Any ideas?? Its a 97 altima