What is the problem with Volvo xc60usb and AUX not being powered on?

Aux, the abbreviation of "auxiliary", is an additional single-line design of signal line. Simply put, cars can be connected to external music devices (such as MP3, mobile phones, etc.). ) through the AUX interface, and then output the music in these devices through the car stereo. AUX can only interface with external audio devices and play back audio through external devices. The power amplifier is completed by the car sound system.

USB and Chinese are universal serial buses, an external bus standard and a technical specification for input and output interfaces. Widely used in personal computers, mobile devices and other information and communication products, and extended to photographic equipment, digital television, game consoles and other related fields. USB is a digital signal and AUX is an analog audio signal. Some models can add a root cutting cable at the tail to realize AUX function, provided that the host supports AUX. If you have strong hands-on ability, you can also disassemble it and add an AUX jack to the radio audio line to realize the AUX function. If neither usb nor aux is powered on, there must be a problem between them. Just check the replacement parts in time.