I've been having a lot of issues with AAwireless on both my oneplus 6t and my pixel 6 pro. 5ghz simply does not work at all. When on 2.4ghz it will often seem to buffer for about 1-2 seconds randomly, the issue is noticeably increased by switching songs or using other areas in android auto like asking maps to navigate, once the navigation command starts to load. My connection speed is over 300mbps, and normally I'd think using 5ghz would be a solution to this, if it could be used, because I have to assume 2.4 is too slow or something?
Also the AAWireless device has to be removed from bluetooth on the phone and readded about twice a week, or else when getting in the car it will connect and disconnect repeatedly, never loading the entire ride. I tried the troubleshooting steps in the FAQ, I think it was something like, remove contacts from either the car or the aa device's bluetooth. Also have whitelisted aawireless in all areas of the phone like battery optimization.
If there's a more extensive guide for either of these issues than what's in the app faq I can start there if someone has a link, but I couldn't find anything yet.