Just in the last few weeks it seems that whenever I'm driving with the phone in my pocket it switches to silent/vibrate. If it's not in my pocket it doesn't switch. I wouldn't care, but it doesn't switch back automatically, I have to manually go in and turn all the volume settings back up. I've turned of all auto settings in Android Auto and actually uninstalled the app since I never use it. (I just ignore my phone when I'm driving unless it's giving me directions). I can't find another app that may be causing this, any ideas?