Why is there no sound when the car Bluetooth is connected to the phone for music playback?

[LeCooper]

If there is no sound when the car Bluetooth is connected to the phone for music playback, it may be due to a connection issue that requires reconnection. Car Audio System: The car audio system is a radio and playback device installed to alleviate the boredom of drivers and passengers during travel. The earliest version used was the car AM radio, later followed by AM/FM radios, tape players, and evolved to CD players and digital audio systems compatible with DCC and DAT. Nowadays, car audio systems have reached high standards in terms of sound quality, operation, and vibration resistance, capable of handling the bumps on rough roads while ensuring stable performance and perfect sound quality. Components of Car Audio System: The car audio system consists of the head unit, speakers, and amplifier. Its function is to amplify weak signals from the audio source or preamplifier without altering the sound quality, driving the speakers to produce sound, commonly known as a power amplifier.