My car had the premium stereo installed at the dealership - so there are two speakers mounted on the back deck in addition to the four in the doors. The system sounds quite good with a decent amount of bass and treble, which is suprising for a stock system. The other day I was working on some thing under the steering column, and I noticed the amplifiers. There are a 2x25 watt Volvo amp and a 2x40 Volvo amp. One of the wires on a clip coming out of the 2x40 looked like it was coming out. I touched it and the clip broke. I took it out, and tried to fix the clip with electrical tape. I put it back in, and I tried plugging the amps both back in. I was not sure which one went to which, but no matter what combination I plug them in, All I can get is the 2 front speakers working.

--Also

Sometimes when I am listening to the radio, It randomly starts scanning, and I cannot get it to stay on a radio station.

Any Ideas?