How to stop auto music playing on Bluetooth connect
I created a song called "AAA Silence" that fixes this problem at least for iPhones (by being 79 minutes of silence that should always be the first song alphabetically on your phone), and I put it on the iTunes Store and on CD Baby. You can just search for "AAA Silence" in the iTunes Store or on CD Baby to get it. Alternately, you can get direct links to buy it and read more about it at http://aaasilence.com/