For anyone wondering if this device is compatible with the maxima, I can attest that it works
https://igg.me/at/aawireless/x#/
I have been using it for about a month and has been pretty solid and reliable. No lag, A/V looks and sounds the same as wired.
It takes about 18 secs from start up, no need to touch or do anything, it will connect and reconnect automatically
I have only experienced a handful of incidents where it may freeze, disconnect or other weirdness.
Currently there seems to a huge backlog due to high demand and production delays but If you are looking for a totally hands-off experience, this is highly recommended
Anyways, I thought to report in case anyone interested, and also because is not working for some Nissan models. Depends on the phone too
I got the info about the radio swap from here and ultimately this was the end goal: AA wireless while keeping the dash OEM look, and not having to spend 1k with a pioneer unit.