
Each car's USB operation may vary. Here are several possibilities: 1. For models with built-in SD cards: You can remove the SD card and insert it into an SD card reader, which essentially turns it into a USB drive. Then, plug it into a computer to read the data and copy the desired songs onto the SD card. 2. For models without a card slot: Prepare a blank USB drive, copy the songs you want to listen to onto it, insert it into the car's MP3 USB port, and follow the steps in the car MP3 manual to transfer the music to the car. Additional tip: Since USB operations differ across car models, if you're not familiar with the process, you can first copy the songs to a USB drive and seek assistance from a car repair shop to help with the transfer.


