u/NomadicalYT

There are lots of pre-CarPlay cars where Maps’ audio will only play when the car is actively playing audio from Bluetooth (almost every pre-CarPlay Toyota, as well as many other Bluetooth stereo systems that support Bluetooth call interruption)

This results in no maps sound when using FM stereo, XM radio, or any other input source

But there’s a fix for all this! (Working in iOS 26 & 27)

- Go to ‘Settings > Apps > Maps > Spoken Directions > Directions on Radio’ and toggle ON

This will result in these car systems interpreting the Maps audio as a phone call, and these systems are programmed to automatically interrupt car audio for any phone calls. All of a sudden audio works again

Hope this helps!