Phone connects to the MM very qucikly, but starts playing music via bluetooth by it's own. Can't stop it. Tried everything, and now it made me really pissed. I stop the Music Player, but it starts on its own again.
Had the same problem, it's an Android feature. Install "Media Button Router" application (freeware if I recall correctly). First time it detects established bluetooth connection, it will ask you what you want to do, play music or do nothing; and you can store the setting permanently.