What does a/v mean?

[MaddoxLee]

In a/v, the 'a' represents that this port is an analog audio signal port, while the 'v' in a/v indicates that this port is an analog video signal port, which can be connected to a car's reversing camera. The main interfaces in a car include: AUX interface: This is an audio input interface that can connect to audio devices such as portable music players, mobile phones, and MP3 players. Using a standard 3.5mm headphone plug, music from these devices can be played through the car's audio system. It is usually located in the glove box or below the center console. SD interface: This refers to the SD memory card interface. SD cards are common data storage cards. After inserting an SD card, the center console media player can read and play audio and video files stored on the card. It is typically located in the glove box or below the center console. USB interface: This can connect to electronic devices like mobile phones and USB drives. With the center console media player, audio and video files can be viewed or played. The USB interface often also provides additional charging functionality. It is generally located in the middle of the center console or in the glove box.