[JJ Black 06 300C]

I'm having a difficult time getting people I call to understand me. I looked at all the posts I could find, but I didn't see where anyone has solved this problem. Is there a solution to this problem? People complain that the voice is hard to hear and breaks up when I'm talking. I even stopped the car and disconnected the hands free to see if the conversation cleard up, and it did. I use a MotoRazr V9 phone, and it normally has excellent connection capability except when I use the in car uconnect system. If anyone has any suggestions, I would appreciate it. I'm out of warranty, so the dealer can't help me without gouging my pocket book.
Thanks.
Jerry