I have tried moving the stock microphone all over the car and the out going sound quality is terrible. The Z110 is in a Mercedes C class, I also have a F90bt in a Chevy Diesel Pickup and it sounds much better. Is there a better microphone available out there? I have read that part number CD-VM1 is a better choice than the stock CPM 1083. Has anyone tried the CD-VM1 or have any better choices?