Purchased a new 8500BHS and had installed by a local shop yesterday. I have a Iphone 5 w/ IOS 7 and attached to a digital AV adapter them from the digital AV Adapter to HDMI and lighting connector to back of the head unit. USB1 lights up and when I select all I get is "format read." The 8500BHS never allows to access the music.
According to the documentation:
Pioneer's AVH-X8500BHS is ready to roll with direct connectivity to your iPod® or iPhone® for music and video via an optional USB interface cable depending on your iOS device (sold separately). Song, artist, time and album informat