I drive a VW Jetta A4(Bora) which already has built-in cell phone system integrated with its audio system(Gamma). I want to connect my Treo650 to this audio system by BT, one of the solution is Parrot CK3100 BT addapter car kit. Want to know has anybody done this before and how is the stablity and quality of voice. or, what else solution are you using. thanks in advance.

this is an introduction of Parrot CK3100 .