Hi everyone,
Japanese users have documented button-press sequences to navigate blind. Here’s a basic cheat sheet: pioneer carrozzeria avicmrz09 english manual upd link
Manual.pdf - btua/Pioneer-Carrozzeria-Avic-MRZ-Series-ENG - GitHub pioneer carrozzeria avicmrz09 english manual upd link
If you are looking for specific update files or "Update Links," search for these terms on car forums: "AVIC-MRZ09 English firmware update" "AVIC-MRZ09 Bluetooth pairing English guide" "Carrozzeria MRZ series translation SD card" pioneer carrozzeria avicmrz09 english manual upd link
. However, you can use unofficial community resources and "hacks" to convert the interface to English and access translated documentation. JustAnswer English Manual Resources