after an attempted jump. Ok, well my car, for some reason, wouldn't start the other day. I would turn the key, there would be a clicking sound, the dash lights would turn on, but the engine wouldn't turn over. I disconnected the negative battery terminal, left it for about 10 minutes, then put it back and it worked fine. It happened again last night, only I had someone attempt to jump the car. It still didn't work, all that happened was that my engine turned weakly. I had to do the negative battery terminal trick again, and the car started.

The problem now is, the airbag light stays on, the clock backlight is on but it doesn't display the time, and my radio (Pioneer DEH-P3000IB) won't turn on.

What could the problem be?