Default Connect WP7 to Car Stereo via USB
I would like to purchase a new cd head unit for my car and use my Zune Pass on my WP7 to play all my music via USB.

Why USB and not 3.5mm aux cable?

I would like to be able to charge my WP7 device and control volume/play/pause/etc from the car CD head unit rather than my WP7 device

Right now, the only CD head units I know of that are capable of this with Zune devices is 2 head units from Kenwood:
w ww.crutchfield.com/shopsearch/zune.html

Has anyone tried this or have another method to get this to work?

thanks