I have a 2013 G37 with the USB port in the center console. Today it suddenly stopped working properly when I plug in my iphone. It will recognize that a device is connected as usual, but the music won't play through the speakers. It shows on my phone that the track is playing, just no sound. The "Now Playing" menu option is also greyed out. I checked the fuse, it's fine. The phone works via bluetooth just fine as well. And it was working this morning, so it's not a phone update issue or anything like that. Any idea what the problem could be?

 

tried a different USB cable?