I recently bought a pioneer DEH-5100. Retails for about $209 US but got it for about $160 on amazon. It has a usb port on the front (and the back). We plug out iphones into the usb slot and it allows direct control of the music through the ipod interface. This would of course require an extra long zune cable (or usb externsion)

It comes with a remote, but I guess it is IR, not RF.

-David