Ok. I tried a CD player as my source, still the same problem.
Right now, the problem is narrowed down to the back panel of the sub-woofer where the DIN connections are. We have ruled out the DIN cables, the satellite speakers (both speakers have been tested), iPod dock, and audio source as possible culprits.
Just to be sure and clear, the DIN cables are the cables running from the back of the satellite speakers to the back of the sub-woofer...correct? If not, then those are the cables I am referring to.
Thanks for the help so far.