Why does the phone still have sound after connecting to the car Bluetooth?
4 Answers
It may be due to unsuccessful Bluetooth connection or the phone/player not supporting Bluetooth playback. Below is a detailed introduction about car Bluetooth: 1. Introduction: Car Bluetooth is an in-vehicle wireless hands-free system designed and developed based on wireless Bluetooth technology. Its main function is to connect with mobile phones via Bluetooth technology for hands-free calls during normal driving, aiming to free both hands and reduce the risk of traffic accidents. 2. Function: After installing a car Bluetooth system, drivers do not need to divert their attention when answering calls while driving. To answer incoming calls, users only need to press a button lightly or use voice control, which enhances driving safety and convenience. Currently, most car Bluetooth systems support functions such as conference calls and MP3 playback, with simple operation and the ability to connect multiple phones simultaneously, greatly improving driving safety.
When I first bought my car, I was also confused by this issue. Actually, if your phone still plays sound after Bluetooth connection, it's probably because the audio channel wasn't switched correctly. Check your phone's Bluetooth settings - after connecting to the car's system, you'll see two options: call audio and media audio. Many people only check the call option, resulting in WeChat voice calls coming through the car speakers but short videos still playing on the phone. Another possibility is that the car's system version is outdated and has poor compatibility with new phones - restarting both devices can solve this. My car had this issue last time, but after updating the car's system, even AirPods stopped having sound problems. Oh, and don't forget to check your phone app's permission settings - music apps with separate output device settings can also cause this.
I've encountered this issue too many times during car repairs. Essentially, the phone splits audio output into different channels: calls go to one channel, media to another. Have you noticed? Even when the phone is muted, navigation voice can still come through the car speakers. To completely resolve this, you need a two-pronged approach: on the phone side, enter developer options to forcibly disable media redirection; on the car infotainment side, enable exclusive media mode in sound settings. Owners of older Toyotas should pay special attention - some models require long-pressing the voice button on the steering wheel to activate audio switching. If you've replaced the central control screen, it gets even more complicated, as aftermarket screens often cut corners with their Bluetooth modules.
Just taught my mother-in-law how to handle this last week. The key point is that the phone remembers the last playback mode every time it reconnects. For example, if you last listened to music through the car speakers, then used the phone speaker for TikTok in between, it might switch back to the phone output when reconnecting. The simplest solution: first close the Bluetooth player in the background, then manually switch to the car audio device in the player when reconnecting. Android users, note that double-clicking the media output icon in the status bar is faster than digging through settings. For Apple users, try a hard restart—don’t laugh, I’ve seen six iPhone X units fixed this way. New cars now come with auto-switching features, but for older models, adding a $20 Bluetooth adapter can also solve the problem.
