So I have the latest Tesla V9 update. iOS 12.1 as well I use Apple Music I just noticed that when I get in the S even with Slacker Radio set, my iPhone starts playing music, I can tell because the Apple Music app is on my lock screen and if I switch the Tesla to Phone, the music is already playing. It didn’t do this before and can drain the phone battery. I have t o swipe out or pause the music on the phone. Tried several things but the phone still starts to play music on it’s own. Anyone else notice this?