Use the Google Lens app on your smartphone. Point your camera at the screen, and the app will overlay live English translations on the Japanese menu items.
Some independent developers have uploaded translated guides for related Carrozzeria series on platforms like GitHub . Key Features of the AVIC-RZ03 pioneer carrozzeria avic-rz03 english manual
Change Pioneer Carrozzeria Language from Japanese to English Use the Google Lens app on your smartphone
The AVIC-RZ03 is a 2-DIN multimedia head unit with robust hardware: pioneer carrozzeria avic-rz03 english manual
Once inside the settings, look for a menu item labeled "言語" (which means "Language" in Japanese) or "設定" (which means "Settings"). JustAnswer