So it seems there was something definitely wrong inside the CMU parameters that blocked my phone uid and did Android Auto to not start. Conclusions: it was NOT my ROM, Android version, google services version nor anything related to the phone, given that it had worked in other cars. Only doing factory reset made AA start working.

I am driving a Mazda CX-50 and using Android Auto Wirelessly with Google Pixel 5. I am facing these issues: (all my apps are up to date) Phone overheats when connected to android auto and then limits all the features and then shuts down. (It did not overheat because of the weather outside, it was raining and pretty chilly).

Now you have the Android Auto Ubuntu Emulator Installed, every time you want to open the emulator back up you just enter the command: sudo ~/headunit/ubuntu/headunit. To compile a headunit binary for use in the car run: cd ~/headunit/mazda && make clean && make. I hope this will lead to more programmers who did not want to bother installing a
Android Auto Mazda Issues. The head unit in the '19s and on in Mazda's support both Android Auto and Apple Car Play. Up until a month or so ago it has been working with multiple iPhones, and multiple Android phones. Now it tells me that whenever I plug my Android phone in that the pin/passcode is incorrect, which is weird since the same phone

Go to your phone’s Settings menu. Tap on “Apps & notifications” or “Application Manager.”. Find and select the Kia Android Auto app from the list of apps on your phone. Tap on “Storage.”. Click on “Clear cache” and then tap on “Clear data.”. Restart your phone and try connecting to Android Auto again.

Nexus 6P running Android 7.1.1, head unit running .441 version. Bluetooth working well, but it freezes, and you have to press the menu to unfreeze it (which I know was mentioned in the OP), but when making a call it takes you to the Mazda phone call screen and doesn't keep you in Android Auto.

CfHx5B. 274 24 164 2 182 35 217 244 455

mazda 3 android auto not working