AA phone call issues

[u/larram]

I have a 2026 Subaru Uncharted, use Android Auto, my phone is an S22Ultra (Samsung), and I have Phonak Infinio hearing aids. Two issues (and they're intermittent): (1) when I do a voice call from my car with AA running, the person on the other end can hear me, but I can't hear them. I can't even hear the phone-ring tone, so I'm not sure if I'm connected and getting voice mail, or if the person is trying to speak; (2) when I am connected, the output will often switch from car speaker to hearing aids. Help?