I took an amp and sub to Circuit City to have them install it. I have an 05 Honda Civic with the factory in-dash cd changer. It seems like they wired the amp to the ignition- it turns on when I start the car. The problem I am having, is that when the stereo is OFF, I start to hear bass when I go over bumps, and then the sub starts to push hard bass constantly and does not stop until I turn the stereo ON. It does this if I'm in Park and just rev the engine a bit also, but once I turn the stereo ON it stops. Any idea what the issue is?
