removed dash to change heater coil. I hit a wire. There was a spark. Funny noise, clicking. Disconnected battery. Fixed wire. Replaced heater core and reinstalled dash. Got an extra plug that I don't know where it goes. It's a 20 pin computer-lookimg connector. Small. Thin. GF thinks it may be from old alarm system. I and three other people (one of whom works on cars for a living) can't find where it goes. Now the brake lights don't work. At first I thought it was plug, but now I'm thinking maybe that plug was never plugged in and I just fried something. Under the hood I heard a funny buzzing noise coming from fuse box I think..illumination on gear doesn't work (to show what gear you're in).but other lights do. No brake lights. Can't shift out of park unless I hold a small tab down on the stealing column. Then it shifts and drives and brakes fine, but no brake lights. Everything else seems to be working fine.i checked abs fuses, seem fine. Switched all the relays with eachother, didn't see any change.
Any ideas? Any help is much appreciated