It sounds like you are referring to a car navigation system, and you are looking for a boot disc (firmware or recovery disc) — specifically a “free 13” version, possibly referencing a regional disc (e.g., for Japan’s “Free 13” region code or a map disc version).
Pioneer Carrozzeria Avic Drz99 Boot Disc Free 13 -
It sounds like you are referring to a car navigation system, and you are looking for a boot disc (firmware or recovery disc) — specifically a “free 13” version, possibly referencing a regional disc (e.g., for Japan’s “Free 13” region code or a map disc version).