USB audio library control and playback

[Guest th3wood]

I want to be able to use my i920 to play audio files through my car head unit's USB connection. I am able to do this by setting my settings to mass storage USB device, but I haven't found a program that would allow me to control the playback directly from my phone. I've looked around the web for something that has the same kind of playback control capabilities as an iPod but haven't had any luck so I figured I should just ask if there's anything out there that will do what I want.