This was the closest thread I could find with something related to what I have questions about.
I have been trying to use the USB port to play my iPod in the truck. I Don't have the touchscreen dash, just the normal radio. When I plug my iPod in it will come up on the screen and say "sync line in" and not play any music? I have the radio on aux. and it still reads "sync line in" and not play anything. It will work 2-3 times out of 10. Really annoying and didn't know if anyone has had this problem or if my truck isn't reading the USB for some reason. Any info is appreciated.