Please Help - My battery on my 90 mustang lx 2.3l was going bad. I went to jump start it and accidentally put the opposite poles on the battery. Long story short. I caused a shortage in the car. We tested all the wires(a lot of wires we're rigged) on the solenoid and was able to that the yellow wire, which divides up into 5 wires and goes into the wiriring harness has a short. When the key is turned to the on position everything clicks on put once the key is turned to start the engine a loud click happens and everything shuts down. The wire (when connected to the solenoid) also causes the ground to become hot. ANY IDEAS AS TO WHAT PART OF THE HARNESS MAY BE SHORTAGED OUT. I'm sure it's a fuse linkage but it's to dark to go searching now.