Two days ago, all the sound started coming out of the left speakers in my car. At double the volume. I assumed it was something wrong with the radio station I was listening to. It wasn't. Last night the same thing happened with mp3's directly on the player.

If I reseat the empeg, everything sounds correct for 20-30 seconds, just long enough to get the volume correct before it flips back, overdriving the amp and sounding horrible.

My question is is this likely an empeg problem or an amp problem?