Picked up my CX-5 yesterday and have attempted to play my 1st gen iPod nano via USB connection. I am using the white Apple-issue USB cord that came with my iPod. When I plug into the car's USB port, my iPod info comes up on the car's touch screen and it says a song is playing but I can't get any audio. This cable works fine when hooked to my computer. Am I supposed to be using a different cable? I can't find any info in the owner's manual!