Originally Posted by reno55
Late reply, but here are a couple options that might help, depending on your needs:
Personally, I want Google Play Music to auto-play when I start the car, and I don't use Apollo at all. So in settings - apps - all - Apollo, I simply disabled it. Now GPM takes over.
If you don't want ANY music to happen over the BT car link, but you do want phone, (for me) it works to go to the details settings screen of the BT pairing and disable Music Profile while leaving Phone.
If your question is just how to disable auto-play, then I don't know how to help, sorry.