I just changed my stick shift on my 95 tbird 3.8 v6, when I was driving down the road, and since I didn't cap/cover up the ends of the wire for the overdrive, I guess the wires crossed and short circuted my system. I was able to keep on driving, but all of a sudden my heat/ac went on even when the button was off, also the battery gauge went completely dead. I shut off my car for a moment, and then I started it up again. All other electronic stuff works, my stereo, blinkers, headlights, interior lights, etc. I am able to drive my car normally, but the heat/ac is always on, and I tried to turn down the fan speed and it stayed at the same speed. Also, the display is completely blank for the heat, even when i play with the controls, the display doesn't go on. I am only able to turn on heat/ac, but nothing will let me turn it off. What could have happened and how could I fix it???????