Thanks.. actually i did a bit of searching after i posted this.. this article doesnt really cover audio connection but, on the bionic dock, the port that it plugs into splits to a 3.5 audio and usb charging port off the same cable. i would assume this would work the same way.
You'll have to plug in the audio, but power plugs into the dock.
http://www.androidcentral.com/motorola-droid-razr-car-dock
Thanks.. actually i did a bit of searching after i posted this.. this article doesnt really cover audio connection but, on the bionic dock, the port that it plugs into splits to a 3.5 audio and usb charging port off the same cable. i would assume this would work the same way.