Glad it helped!  That drove me nuts for the longest time.  I recently decided to try disabling notifications, and sure enough, it worked.  Wish I tried it sooner. I am currently casting Pandora with only the 'Music Player' notification enabled and so far haven't had the phone crash.  I'm thinking it may only be the 'Cast' notification that causes it.  Maybe this will work for you too and you can get music controls back. ... View more