My Skoda Rapid has AUX input, normal headphone jack and USB.
When I plug in my iPhone into the USB it charges but it says MDI INITIALIZING, however after a few seconds on the phone it says the accessory is not compatible with this iPhone.
Any idea why? read the book and it should work.
AT the moment I play over Bluetooth, however no song information or controls are available.
Do I need another cable or something?

Appreciate your help