Find Bluetooth playback on the car's display screen. The specific steps are as follows:

1. Turn on both the mobile phone's Bluetooth and the car's Bluetooth, and ensure that they are both discoverable and The distance between the two is no more than 10m.

2. Click on the search device on the Bluetooth page of the mobile phone, search for the name of the car Bluetooth, click on the car Bluetooth after searching, and select pairing.

3. After entering the correct pairing code, you can see the words "Connected" on the car Bluetooth display screen, and then the car Bluetooth player can be used normally.

4. Then click Music on the Bluetooth display interface, and open the music player on the phone. Then you can click on the songs on the phone to play them, and the car Bluetooth player will also play the corresponding songs.