ReBell

I have mounted a Motorola V600 Car Kit in my 1999 ML430 and was wondering how to wire it to automatically mute the radio on incoming calls as well as use the car's audio speakers for the incoming handsfree voice - the kit has two wires (orange for radio mute and green for speakers). I am aware of the existing prewiring for the old analog V60 phone (the RJ45 jacks in console and behind radio, the coax for the roof mount radio, mic mounted next to rear view mirror,etc) and was wondering if there exists an after market wiring harness to allow for a simple install where I might accomplish these tasks? Anybody know? Thanks in advance!

ReBell