Parrot makes a great unit to add to his stock radio that will pair with his iPhone flawlessly.
With this module installed, he can no make/receive calls handsfree, speech to text or email, as well as Auxiliary/USB/iPod/iPhone wired inputs. All controlled from a wireless controller on his steering wheel.
Quality of sound out of this thing was very good.
With the display wired right where you're looking at the gauges, it's easy to see what's going on.
Wired the aux inputs down low so they are out of sight.
Dual mic was placed in the gauge cluster for head-tiltless ease.