
Here are the reasons why sound cannot be played after the car and phone are connected via Bluetooth: Phone Issues: The connected phone may have problems and requires a restart or factory reset. System Issues: There may be an issue with the car's infotainment system, which needs to be restarted or reset to factory settings. Below is a related introduction to car Bluetooth: Working Principle: The car Bluetooth player can connect to the car's Bluetooth system, receive Bluetooth signals from the phone, and convert them into FM signals for sound playback. Function: The function of car Bluetooth is to automatically identify mobile phones without the need for cables or phone holders to connect with the phone. The owner can control the phone without touching it, even keeping both hands on the steering wheel, using voice commands to answer or make calls.

Last time I encountered an issue where my phone connected to the car's Bluetooth but there was no sound, and it took quite some effort to resolve. There could be several reasons: unstable Bluetooth pairing, often disconnecting in areas with poor signal; phone settings issues, such as the default audio output not being set to Bluetooth, or a music app's permissions not being enabled; incorrect car infotainment system settings, not switched to Bluetooth input mode but instead set to radio or CD; volume turned down too low or muted on the phone without realizing it; outdated software causing compatibility conflicts. I recommend first restarting both the phone and the car's infotainment system, second forgetting the device and re-pairing it, and third ensuring the input source in the car is set to Bluetooth. If that doesn't work, try updating the software. For persistent issues, don't compromise safety—seek professional repair services. These basic steps can resolve most situations, so don't overlook the simple things.

My friend's car had the same issue before. The Bluetooth was connected but silent, most likely due to a mobile app interference or multitasking consuming resources and affecting transmission. Check the Bluetooth connection in the phone settings to confirm the correct device is selected and audio output is allowed. It could also be caused by battery management restrictions stopping background apps from playing music. Try clearing the background apps, restarting the app, or testing with Bluetooth headphones to see if it's a phone issue. On the vehicle side, ensure the audio mode is set to Bluetooth input instead of other sources. Sometimes, an outdated Bluetooth version requires a firmware update to enhance compatibility. For frequent disconnections, remember to periodically delete old paired devices and reconnect to prevent accumulated issues. Adjust the settings before driving to avoid distracted operation.

I encountered a Bluetooth connection with no sound while driving and immediately pulled over to address it. Safety first—don't get distracted while troubleshooting. Ensure the car's infotainment system is switched to the Bluetooth audio source instead of the default radio; check if the phone is muted or at the lowest volume. Turn Bluetooth off and on again to see if it reconnects automatically; sometimes the vehicle settings lock the output and require unmuting. If the issue isn't resolved, don't force yourself to continue driving.

The Bluetooth in our family car keeps malfunctioning, connecting but no sound—probably due to messed-up settings. Conflicts from different members' pairings confuse the car's audio output. We recommend deleting all old devices from the car's Bluetooth list and re-pairing them one by one to save personalized settings. Also, check if the phone accidentally muted audio or if the car's priority mode limits sound. Try clearing the cache and restarting. When sharing the car, set rules to unify and adjust settings to avoid hassle.


