I have the car audio that reads the tag mp3.
When rename my mp3 with Mp3tag, pressing the radio buttons (on car audio) for more information (artist, album, name) appears to me: YPA; YPE; YPT.
The radio only get the folder name (if I created a folder mp3) and the full name (for example: song.mp3).
Ps: Sorry for my English....I'm Italian
Ps(2): Compliments for this program