The Pioneer CD-IU52 usb cable is plugged directly into the back of the HU into USB 1
I read to try another USB cable but I eliminated that problem by going directly into the head unit. Has anyone had an issue with the Pioneer cable?
I have done a reset on the unit as well as rebooting the phone.
I have also tried 3 different Apple HDMI/ lightning plugs
iPhone 7 - iOS 10.3.2