What are the reasons why the music in the car cannot be played?

[McElla]

The main reasons why the music in the car cannot be played are: 1. The car stereo may not support lossless formats: it may need to be converted to MP3 or WMA format; 2. The bitrate is not standard: the bitrate format supported by the car player is around 160kbps. If the downloaded music bitrate exceeds this standard, it will not play, and the bitrate needs to be converted; The supported formats and bitrates for the above playback formats can be found in the car stereo's manual; 3. The song files are placed in the wrong location: the car stereo may only be able to read song files in the root directory. If the songs are placed in a folder, they cannot be read;