h8rade

BLUF: If you can't hear internet radio through BT on Android w/o also playing MP3s through Google Play App, clear the que on Google Play and it should work.

So I had a couple weeks were I couldn't listen to internet radio. Specifically I was trying to get German radio since that's how I keep up on the language. Anyway, at some point last month when I would hit media to stream the radio, it automatically opened Google Play MP3 player App. When I would pause the music so I could listen to internet radio, there was no sound. If I would disconnect my phone would play the internet radio through it's speaker. It took me a couple weeks to give this out, but I had to clear the que on the Google Play app to get the internet radio app to play sound through MMI Bluetooth connection.

I have a 2.5 year old Moto Razr Maxx running Android 4 point whatever.
It could be the phone or common to other Android users. Let me know if you have had this problem.