This just started happening recently . . . My phone is synced with my car for both calls and audio, but whenever audio is played from any app on my phone, the Bluetooth immediately drops the audio connection. If I go into Bluetooth settings and keep toggling the audio back on, then phone will stop playing audio. Other Bluetooth speakers/headphones work fine. I have a Galaxy S9+, with Android 10. I've tried unpairing, restarting my phone, unpairing all other devices, etc.