2011 a4 teknik ami problem

[G19rnt]

hi everyone I've recently upgraded my phone to an I phone 6s and today I plugged it into the ami cable in the glovebox using the cable with the usb end and plugging my I phone lead into it anyway it wouldn't work it charged the phone but wouldn't play music anyone else had this it worked with my old 4s i'am hoping to get it working as I'm heading down south next week

Thanks