Kindly check the checklist bellow
1. For the sake of safety, the initial connection is possible only when the vehicle is stopped.
2. The connection between Android Auto and the vehicle is possible using a Bluetooth or USB cable, and the connection method may differ depending on the vehicle and manufacturer. The exact connection method between the owned vehicle and Android Auto needs to be confirmed by the vehicle manufacturer.
3. Using Samsung's genuine USB cable (Depending on the vehicle, even a genuine cable may not be compatible) Additionally, it is recommended to use a short USB cable within 1m.
4. Check if you are connected to another vehicle.
Connection is made only with the cable method, tried out many different cables including a Samsung original, short length, long length, all gave same results. Apple carplay works great with good resolution and android auto has low resolution. The car is JAC J7. Thanks!