Default [Q] Can you play music from factory stereo (usb)?

Is it possible to get the HTC one x+ to be native-ly supported ( like an iphone ) for stock usb audio players in cars? My understanding is that you have to enable usb mass storage mode or some type of host, is that even possible with out formatted the phone and then doing a re-partition of the internal storage to make it appear as removable?

What would you guys suggest, is there any cheap "hardware hack" ( under $75 ) to just bypass the issue and emulate apple hardware?
Torrent on your phone like a boss