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Why is there no sound after connecting Audi Bluetooth?

2 Answers

LeHazel

07/24/25 8:38am

Audi Bluetooth connection has no sound because the volume on the car navigation system or mobile phone is not turned on. Some mobile phones (such as iPhone) have music playback programming that is incompatible with the docking codes of certain car models, so they can only answer calls but not play music. The multimedia music of the car Bluetooth is not turned on, and the media audio on the mobile phone is not turned off, causing signal interference with the Bluetooth function. Reasons for signal interference in Bluetooth function: There are interference sources, as well as obstacles blocking the signal. Another factor is the power supply of the Bluetooth device itself. Interference from surrounding radio waves and obstacles. Reasons for the multimedia music of car Bluetooth being turned off: The volume on the car navigation system or mobile phone is not turned on, simply turn it on.

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StVera

08/11/25 4:10am

As someone familiar with automotive electronics, I often encounter similar issues. The problem of no sound after connecting Bluetooth in an Audi may stem from several aspects. For example, the audio input source of the car's system might not have switched to Bluetooth mode, meaning the device is connected but the signal isn't outputting. I suggest first sitting in the car and checking the multimedia menu on the central control screen, selecting the Bluetooth audio source to try. Alternatively, both the phone and car volumes might be set too low—adjust the volume using the steering wheel controls. If that doesn't work, disconnect and reconnect Bluetooth, or restart both the phone and the car's system. Software bugs can sometimes cause glitches, and updating the MMI firmware might resolve the issue. Hardware problems, such as speaker failure, are less common, but if it happens frequently, it's best to visit a 4S shop for inspection. Preventive maintenance includes regularly clearing the Bluetooth cache and ensuring device compatibility, with driving safety being the top priority.

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