What is the function of the AUX in a car?
3 Answers
AUX is an audio input interface. The basic working principle of the AUX interface is that after connecting to the AUX interface, the audio in electronic products can be connected to the car audio through the headphone jack and AUX interface, and the audio can be played in the car audio broadcasting facilities. The USB interface can be used to insert a USB flash drive to play audio. When using it, insert one end into the AUX interface and connect the other end to a video player such as a mobile phone, MP3, or MP4. This allows you to listen to songs or niche music anytime and anywhere, not limited to car music CDs. However, if the playback device runs out of power, the music will also stop (the interface is generally a 3.5mm standard headphone jack). Aux, which is short for Auxiliary, is an additional signal line design. In general audio equipment, in addition to the official output and input terminals, there are often several terminals labeled Aux, serving as backup connection terminals. When there are special applications, such as needing additional sound output or input, this type of terminal can be used. These backup terminals or lines, whether for input or output, are collectively referred to as Aux. Function: The AUX port is an asynchronous port, mainly used for remote configuration, dial-up connections, and can also be connected to a MODEM via a transceiver. It supports hardware flow control. The AUX port and CONSOLE port are usually placed together because their respective applicable configuration environments are different. The AUX interface establishes a command-line connection between the user and the device, enabling operations that are usually impossible in user mode, such as initialization, restoring initial configurations, and correcting abnormal user modes. It provides a fixed port for the device, which can be used as a standard asynchronous serial port with a maximum speed of 115200bit/s. Using the AUX interface, remote configuration of hardware products and line backup can be achieved. Note: When using the AUX interface, make sure to buy the correct connecting cable and avoid plugging the audio cable into the wrong port. It is best to follow the steps in the product's user manual when using the AUX interface. If you are still unsure, you can consult the product's official website or call for assistance.
I've been learning about the AUX port in cars recently. It's that small hole, usually a standard headphone jack. After plugging in a cable, it can connect the sound from your phone or other audio devices to the car's audio system, allowing you to play music, podcasts, or navigation voice directly in the car. This way, you don't have to rely on the car's radio or CDs, and customizing content is super convenient, especially for listening to your own playlist during long drives. Although Bluetooth is more popular, AUX is widely available in older cars, offering stable connections without the need for charging or pairing hassles, making it a low-cost and practical option. Many car owners overlook it, but it can be a lifesaver in areas with poor signals. I now use it to play music while driving, and with a bit of cable management, it doesn't get messy.
I think using AUX in the car is the most practical. Every time I drive, I'm used to plugging in my phone with a cable to play songs or podcasts in the car, making the whole trip enjoyable. AUX stands for auxiliary input, requiring no setup—just plug and play, with no connection latency issues like Bluetooth devices. Of course, the cable can sometimes get in the way, so I bought a shorter one to solve that. It works with any device that has a headphone jack, offering strong compatibility, especially useful for older MP3 players. Nowadays, new cars might have fewer AUX ports, but it's still a great backup option—highly reliable and energy-efficient.
