

Hi Feddinat0r,
Enable developer settings and explore the audio settings in there, there might be a way to get that done, or it might only be limited to Bluetooth.
Also, this app isn’t quite designed for this issue but maybe take a look into BTCarMono Mono BT Router. I used it in the past until I fixed the issue I had with a Bluetooth device. Also, I’m not sure it’s compatible with your phone running such an old version of Android, you’d have to test.
Good luck!

My solution is to have a mini PC in a remote location which boots at a given time each day (BIOS option using RTC Clock). It autoconnects via Wireguard VPN to my home network. I have rest-server running in a container.
Locally, I have a cron job for restic backups to the remote rest-server, followed by an ssh command to update and power off.
Has been solid so far!