wierd mylink and iphone issues

[synaptik]

Originally since i bought the car I could only use pandora if plugged in via usb but not over bluetooth but all other functionality worked except text message notifications also stopped working. So i resynced my phone with the radio and now i have lost bluetooth audio completely I can only play music from my phone via itunes or plugged in via usb. Pandora no longer even works at all when it tries to launch the app crashes. I have tried 2 different versions of iOS (i did the latest update and also tried with a backed up version of the phone from months ago when all was working fine)

any ideas?

Mylink without navi and an iphone 6s