I've got a small Problem with my Sub making a fast pulsating bumping sounds every now and then.
I had this problem a couple times before, Then I reciently replaced my CD player and redid all wiring conections behind the head unit and EQ.
The bumping stopped for a while but just started again last night on my way to Largo.
The stereo plays fine 99.8 percent of the time with no negative feed back or unwanted noise, But now that this has started again...I'm starting to get worried I'm going to pop the sub or blow an Amp.
What could this problem possibly be? I need someone to point me in the right direction to fix this problem.
Any suggestions?

Thanks, -Jeff