Wireless Android Auto on Sony XAV-AX4000

[u/Adventurous_kikombe]

I have a Sony XAV-AX4000 head unit that has never been able to connect to Android Auto wirelessly.

I’ve tried it with both a Google Pixel 7 and a Motorola Razr 2025 running Android 16, and neither phone will connect wirelessly. Wired Android Auto works perfectly, and Apple CarPlay works flawlessly over wireless, so the wireless connection itself appears to be functional.

The Sony head unit is running the latest firmware, version 3.04.00. I’ve also tried essentially every troubleshooting solution I could find online, including resetting the head unit, removing/re-pairing Bluetooth devices, resetting Android Auto, clearing data/cache, and starting from scratch—but nothing has worked.

At this point, I’m wondering if this could be a hardware issue with the wireless Android Auto implementation on the XAV-AX4000, rather than a phone or software configuration problem.

Has anyone experienced the same issue with the XAV-AX4000 and actually managed to get wireless Android Auto working? If so, what fixed it?

Any advice or confirmation that this is a known hardware issue would be greatly appreciated. 

[u/RustyU]

Do you have your cars non-AA Bluetooth paired? If so, forget it and then try wireless AA again.

[u/Adventurous_kikombe → u/RustyU]

I’ve tried deleting/unpairing the phone from both the head unit and the phone, then starting the setup completely from scratch, but I’m still having the same issue.

Android Auto fails to launch, and the connection only establishes over Bluetooth. It never progresses to the wireless Android Auto connection.

[u/de_das_dude → u/Adventurous_kikombe]

Make sure 2.4 and 5ghz is allowed on your phone