Just got a new 08 GT w/ Nav, w/ Bose and w/o Sat. I'm trying to use the aux jack to play music with my iPhone. When the cable is plugged in, the system recognizes it because the display changes to the generic "AUX" screen when the "MEDIA" button is pushed (when not plugged in, the "MEDIA" button does nothing). However, I don't get any sound. iPhone works fine through its own speakers when it's not plugged in. I am using a Belkin aux plug cable that is designed for use with the iPhone. Any ideas? Thx.