The Pioneer Carrozzeria AVIC-RZ99 is a beautiful, well-built unit, but it is not beginner-friendly for English speakers. Buy it for its retro JDM aesthetic and excellent audio processing, but accept that the software will always speak Japanese.
Why? Because this unit was strictly sold in Japan for the Japanese market. Pioneer’s English documentation only covered their "AVIC" series meant for North America/Europe (e.g., AVIC-F series, AVIC-X series). 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. The Pioneer Carrozzeria AVIC-RZ99 is a beautiful, well-built