I have an X930BT in my car and everything has worked perfect on the unit until recently.
My gf tried to plug her regular iPhone 4 in using the supplied cable and we were not able to get sound out of the speakers in the vehicle with her iPhone hooked up. The unit read her phone like an ipod like it normally always had and you can actually see the song and the seconds ticking away on the screen, but no sound plays through the speakers.
I then tried to plug my phone back in using the cable and same problem now with my phone. No sound coming through speakers even though song shows up on