Hello all, I've had my '08 MC for about a month now and there is an intermittent buzz from the speakers that happens when the radio is off and while I'm driving...it sort of goes "bzzz..(pause)...bzzz" in under a second. I thought it was correlated to some bumps on the road but it seems very unpredictable. Has someone seen this before? Mine is an 04/08 build. Thanks much. Cell phone interference perhaps even with no power to the radio? Maybe a loose contact somewhere?

I had a similar issue with the Harmon Kardon upgrade.CD player and factory Sirius radio. They ended up replacing the radio.

rob c