Do not expect to use the built-in GPS navigation for street directions outside of Japan. The maps are locked to Japan, and updating them requires a Japanese SD card and a paid subscription to Pioneer’s "Smart Loop" service (discontinued for this generation).
However, there is one massive hurdle for non-Japanese speakers: Pioneer Carrozzeria Avic-rz99 English Manual
If anyone in this thread has a PDF of a translated button map or menu tree, please share it below. It would help keep these classic units on the road. Do not expect to use the built-in GPS