Search for "bluetooth audio music automatically starts" and you'll see plenty of hits, including a few potential solutions.
Thanks for the idea! I did find enough information to get a fix - or so it seems
- at least in the Android world - but some of this is relevant to iPhone, if in that it explains what's causing the mysterious activity of one's phone/music app.
Here's my understanding:
- Seems that most Bluetooth enabled head units (aka "car stereos,") when turned on to their Bluetooth audio setting (on my '14 forester Premium that's when it's set to "BT-A") automatically send a "Play" command to the device that's connected to it.
- When the connected Bluetooth device (the phone, in this case) receives the "Play" command, it looks to kickoff it's media player. Obviously many of us have multiple apps that can play media - so it goes to whatever app the device considers the default and starts it playing. (Very convenient - in pure theory.) It seems that most (all?) stereos that do this, don't seem to have a setting to turn off the sending of the "Play" command.
- On Android - you can completely knock this behavior out - but it kind of seems like you throw the baby out with the bathwater: The settings can be changed to disengage a specific Bluetooth connection from not just receiving the "Play" command, but also from playing back media via Bluetooth. You can find this by going to Settings -> Bluetooth (turn Bluetooth on if it's not already on at the time) -> (Find the list of "Paired Devices" - for my '14 Premium Forester it's "CAR M_MEDIA") Click on the far right of the listed device, on the graphic for the Settings -> (Find "Profiles") - Unselect "Media audio". ALL THIS SAID - I DON'T RECOMMEND THIS
- because I believe that it will knockout the ability of the phone to play back music though the stereo.
- Again, on Android only- a possible solution: I found my way to a free, well rated app called "Media Button Router"
) From what I understand, when the stereo sends that "Play" command - this app "grabs" it - and lets you decide what to do with it; which media app it should go to. The app generates a list of all media apps on your phone and provides a box to check if you want it as an option when the that "Play" command comes in. Personally I paired it down to just my Audible book app only. As of my first use this morning, while it didn't prompt me - the default music player didn't go off either!
So that's my new knowledge on the situation - I'll post back when I've used this possible solution some more to better understand it. Until then- this information is to be used at your own risk!
Anyone else try something like this?