Well, I drive Sebring 2007 and it's equipped with MyGIG REW system, it has most recent FW version and so far no ability to stream audio and/or video thru USB. I'm not sure what system you have in your T&C, but I've been checking all news on MyGIG systems and never heard of this funcionality to be implemented. This system is a little bit old fashioned- it doesn't allow to sort content after it's copied to HDD, no possibility to copy from HDD to USB, no direct playback from USB (too bad). In your situation I'd look for possibility to get plain A/V output from your device- not sure if your phone has such option, I know iPhone does. If there's a way to get video out, you can use cable from these lads:
MYGIG LOCKPICK - scroll down to multimedia harness.
ddff_lv