This is the same issue that happens with every major IOS beta rollout. It happened (from memory) on 12 and 13.
Basically the early versions seem to mess up bluetooth connectivity to speakers, headphones and cars.
I still have an issue with the compatability with my Ford and iOS 13.6.1 where the connection drops after 10 seconds - 40 seconds of silence then it reconnects - everytime.
I've given up on the beta programe because of these issues.
The final staw was the incompatability with the OS Maps app - the map would not load until the offical release of IOS13's GM.
Proceed with caution.
J_B_S
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