I had a Z120BT installed in my car and the installer did an great job! Before he started the work, I purchased the Parrot Dual Mic. He first tried to wire the factory mic located in the steering column, did not work well. Then he tried the Pioneer mic, did not work well. Plugged in the Parrot Dual Mic, worked great! Mounted on the steering colunm and the BT phone clarity is very good and the VR works well, even with the top down. If you use an iPhone 4, make sure that it is not on mono or else you will drive the people who have called or received calls nuts as their voices will echo on t