What is the reason for no sound when playing music via Bluetooth in Audi Q3?

[LillianaRose]

If the car cannot play music when connected via Bluetooth, it may be due to incorrect music playback source settings. Introduction to Car Bluetooth: Car Bluetooth is an in-vehicle wireless hands-free system designed and developed based on wireless Bluetooth technology. Its main function is to connect with mobile phones via Bluetooth technology for hands-free calls during normal driving, thereby freeing hands and reducing the risk of traffic accidents. Functions of Car Bluetooth: The function of car Bluetooth is to automatically identify mobile phones, enabling connection without the need for cables or phone holders; the car owner can control the phone without touching it, even keeping both hands on the steering wheel, and can answer or make calls using voice commands. Users can make calls through the car's audio system.