MP3 format of car music playing songs: 1. In order to pursue high-quality music, many music lovers will be keen on high-quality lossless formats such as OGG, FLAC or AAC. However, due to the limited music formats that the vehicle-mounted machine can recognize, the music files in the above formats may not be recognized at all, let alone played. 2. Generally speaking, MP3 and WMA formats are the most widely used in the field of car music. Although these formats are not as good as the above formats in sound quality, they are expensive because almost all on-board systems can recognize them. Therefore, to say which format of music files is the best in car music, it must be MP3 and WMA. 3. With the development of automobile technology, it is getting closer and closer to the direction of intelligent interconnection. It is believed that the future in-vehicle system will be able to completely get rid of the shackles of data lines and mobile phones, thus achieving the real wireless interconnection effect.