I purchased this for my wife so she would not be reaching for her cell phone while driving.  I had it professionally installed and bought a "Pro Mount" rather than the mounting bracket that came with the unit.  Linking the phone to the device was easy and, even though the auto is a sporty T-Bird (2002), there is no background noise and the voice is loud and clear.  The mic is mounted on the left windshield post with all wiring hidden.  I recommend having an audio shop install it ($100 + 30 for the mount).  It's a good application of the Amazon discount.  The radio interface is great!