Just purchased 2011 G37s with premium and nav. I'm loving the car so far and am trying to learn all the in's and out's of the car. Tonight, I tried plugging in my iphone 3GS using a usb cable. I noticed that sometimes, when plugging in the phone and playing music, the display screen will show the song playing but no music will come through the speakers. Also, the track time will just stay frozen on a number. If I unplug the iphone and plug back in, it seems to solve the problem. The same issue also occurs when I switch from bluetooth streaming and back to USB.

Anyone know why this is happening and if there's a solution? Thanks for the help.