BYD AUX interface is located in the central storage box. The AUX interface (auxiliary) refers to the audio input interface, which can output audio from electronic audio devices including MP3 (universal headphone jack). The music in these devices can be output through the car audio. 1 data cable port 2 AUX interface 3 SD card socket 4 USB interface Use of BYD auxiliary interface: Connect the player to the auxiliary interface of the car. 3.5 Plug one end of the double-ended cable into the headphone jack of your mobile phone or mp3 player, and the other end of the double-ended audio cable into the AUX jack on the car media control panel. Click the auxiliary icon on the left navigation bar to play auxiliary, as shown in the figure below: The multimedia system supports the insertion of auxiliary peripherals; when the auxiliary device is connected, music can be played by operating the auxiliary peripheral device. When the system is in AUX mode, the sound output by the audio system is determined by the volume of the connected AUX device and the multimedia. If the connected auxiliary device is muted, multimedia will be output silently. Nowadays, mobile phones or mp3 players support lossless music playback. If you want to listen to high-quality car music, this AUX interface plays a very important role. The data it transmits is high-fidelity, which is better and more convenient than using Bluetooth on your mobile phone to connect to the car player. Direct plug-in and plug-in use, simple and fast.