Issue with playing iTunes in car

I can't play my iTunes in the cloud music from my iPhone 6+ connecting via Apple USB cable all I get is about 2 mins of a song then it cuts off then I can't play any songs at all. I have to switch my phone off then back on before I can use it. This has just started happening since I updated with IOS 9.2.1. Is anyone else having these problems and ideas how to fix it or is it a case I have to wait for the next update?