
The following are the reasons why the car navigation is working normally but without sound: 1. Navigation system issues: The volume settings in the navigation system are not turned up, or the mute setting is activated. The FM transmission function is turned on in the FM transmission interface. If other sounds in the navigation are normal, it could be a version issue with the navigation system. 2. Mobile media issues: The media audio on the phone is not turned off, causing signal interference with the Bluetooth function. First, enter the Bluetooth settings on the phone, turn off the media audio, and keep only the phone audio. 3. Speaker issues: External sound requires functioning speakers. If the speaker wires are broken or the speakers are damaged, there will be no sound.

Having driven for so many years, I've found that silent car navigation is quite common and usually not a major malfunction. The most frequent cause is the volume being set too low—perhaps the mute was accidentally enabled in the system settings, or the steering wheel buttons were pressed, triggering mute. Another common issue is audio system problems, such as a damaged speaker or poor wiring contact, especially on bumpy roads where connections may loosen. Bluetooth interference is also a possibility; if your phone is connected to the car's Bluetooth but the audio output priority is misconfigured, the navigation voice may disappear. Additionally, the navigation software itself might have bugs, requiring a restart or map data update. My suggestion is to first increase the volume and check the settings; if that doesn't work, restart the device. If other audio functions work fine, visit a 4S shop to inspect the hardware. Regular maintenance checks on the audio system can help prevent issues before they arise.

Last time on a long trip, my car navigation suddenly lost sound, almost making me miss the exit. My first reaction was to adjust the steering wheel volume knob, but it didn't work; then I found that the phone Bluetooth was interfering in the background, and changing the audio settings solved the problem. It could also be due to aging speakers, especially prone to failure on hot days. Loose connection ports are not uncommon either, try plugging and unplugging the AUX cable. Sometimes software bugs are to blame, and updating to a new version can fix it. If the problem persists, don't delay, as it can easily disrupt your trip, so get professional repairs done early. In short, troubleshooting small issues yourself can save trouble and ensure safety.

The car navigation is working but no sound? Usually a minor issue. First check if the volume is set too low or mute is on; then inspect the audio hardware for speaker or wiring faults; Bluetooth conflicts may also hijack audio output. Quick fixes: turn up the volume, restart the navigation system; if other media has sound, it's likely a software issue; if none of these work, visit a car service center. Not hard to solve—just take action.


