How to Update system in Android auto radio？
Update methods：
1. Unzip all file and copy them to empty SD card or to USB.
2. Insert to USB slot or GPS slot when the car radio is turn off.
3. Turn on the car radio，then you will automatically receive an updated reminder on your device and follow the steps to update it.
Here to get updated file：https://www.isudar.com/blogs/download...