How to use the car aux interface: 1. First check the car aux interface. This interface is the same as the standard headphone interface. Generally speaking, there will be an AUX letter prompt next to the interface; 2. You can Purchase an AUX cable from a 4S store, auto parts store, or online. Both ends have standard headphone jacks. 3. Connect one end of the AUX cable to the AUX interface of the vehicle, and the other end to the headphone jack of the audio device; 4. Adjust the input mode of the car audio system to AUX mode, so that you can play music on the audio device, and the audio information will be directly transmitted to the car audio system.
Why can’t the car play music when connected to aux? 1. If the car owner has modified the central control screen (including flashing the system or completely replacing it), then there is a high possibility that the music cannot be played because the new central control screen Does not support AUX, or is incompatible with the original car's AUX interface. There is no good solution to this problem. You can only replace it with a central control screen that can support it. 2. It may be because the cable used by the car owner is not good. Try another cable. 3. What the car owner connects is not a player. The function of the AUX interface can be understood as an external speaker. It must be connected to an MP3, mobile phone and other players to have sound. Of course, it cannot be played even if it is connected to a USB flash drive. To solve this problem, car owners can buy a connecting cable with a decoder, so that the AUX converts the USB connection to plug in a USB flash drive and play music. However, this is more troublesome, and the AUX interface needs to have power, so the car owner can draw power from the cigarette lighter.