I have an 05.5 with Satellite Radio and Naviagtion. Do i need to purchase anything else to use a bluetooth phone with my car? The manual is lacking here...
Thanks.

This is what I remembered the components that consist of the Audi BT setup. Refer to www.navplus.us for specifics:

-the bluetooth module (~$400)
-microphone (~$150)
-wire harness (~$140)
-antenna (don't remember price)

I hope this helps...