Android Auto – Display Mediaplayer

I have a question to be laughed at at at the risk. When starting the Enyaq, Android car should be started, which usually works automatically, but sometimes I have to push it with my hand. What bothers me is that the media player is always started on the mobile phone and not the car radio, as it was before and as I would like it to continue. I’m too stupid to change that again. It only works this way since last week he was the 1st. Can someone please help me on the jumps? THANK YOU