Why is there no sound when playing music via Bluetooth in a Volkswagen Polo?
2 Answers
This is because the car audio volume is not turned on, and the user simply needs to enable it. Some phones (such as iPhones) have music playback programming that is incompatible with certain car models' pairing codes, so they can only receive calls but not play music, requiring a change in the Bluetooth playback frequency band. Below is an introduction to the car Bluetooth system: 1. Function: Car Bluetooth is an in-vehicle wireless hands-free system designed based on wireless Bluetooth technology. Its main function is to connect with a phone via Bluetooth during normal driving for hands-free calls, thereby freeing both hands and reducing the risk of traffic accidents. 2. Principle: Bluetooth technology is an open global standard for wireless data and voice communication. Its essence is to establish a universal radio air interface for communication environments between fixed or mobile devices, further integrating communication technology with computer technology, enabling various 3C devices to communicate or operate with each other over short distances without the need for wires or cables.
I've driven a Volkswagen Polo for many years and encountered the issue of no sound when playing music via Bluetooth a few times, usually minor problems. The most common issue is incorrect volume settings—check if your phone's media volume is too low or if the car's volume knob isn't turned up. Sometimes, apps like NetEase Cloud Music freezing can also affect playback. After pairing, remember to select Bluetooth as the audio source on the car's infotainment screen—don't skip this step. Restarting can fix many issues: turn the car off and on again or restart your phone to clear temporary bugs. Outdated software can also cause problems, so regularly check for updates to the car's system version to avoid bugs from old firmware. If all else fails, inspect the speakers or loose cables, and for safety, visit a professional shop. Develop good habits for maintaining your car's infotainment system.
