YouTube is not officially supported directly on Android Auto. This is because Android Auto prevents video watching while driving for safety reasons. It is not possible to open video apps like YouTube directly in the Android Auto interface.
However, there are some ways to indirectly play YouTube videos on Android Auto. Here are some options:

1. Using YouTube Music
   Android Auto supports the YouTube Music app.
   You can only listen to music videos or songs available on YouTube Music.
   It plays only the audio of YouTube videos, not the videos themselves.

2. Third-Party Apps (Risky and Not Recommended for Safety)
   Some apps or mods (for example, “AA Youtube” or “CarStream”) may allow video playback on Android Auto.
   However, such apps usually require root or special settings, have security risks, and may be illegal.
   Also, they can be distracting while driving, so their use is not recommended.

   
   

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3. Screen Mirroring the Phone to the Car
   Some vehicles allow screen mirroring of the phone.
   You can open the YouTube app on your phone and mirror the screen.
   This method poses safety risks, can be distracting, and may be illegal.

4. Alternative: Listening to YouTube Content as Audio
   There are some apps to play YouTube videos’ audio in the background, but they need to be compatible with Android Auto’s music app.
   For example, songs or podcast-like content available on YouTube Music can be used.