I have the same issue with a "CD seeking noise" coming from my radio. Same with me, it goes away when a CD is playing. I asked the dealership about it, and they just replaced a radio under warranty. Then the noise came back pretty quickly thereafter. I'm trying to find the answer to this as well.
People on this forum know a lot more about Crossfires than dealerships I've gone to.

I had a problem with my supercharger not working each and every time. Found out, through this forum, that it was a bad pump that works with the supercharger.