BTA8100 BT recently developed problem

[awc5004]

I have owned my 8" tube since October 2011. Up until a few days ago, I couldn't be happier with the purchase.

Recently my tube has started producing sounds of what I can only describe as random hits of distorted bass.

It doesnt matter if the radio is on or off and every time it turn on the car, it produces about a 5 - 10 sec "hit" of distorted bass.

Also, I noticed that if you move the tube or slightly tap the back of it, it produces the sound as well.

My only guess is that a connection might be loose?

Thanks for reading!