Insert the Carrozzeria AVIC DRZ09 Navigation-installation disk into the top slot. The screen will show: "Check disk... Do not eject."
The DRZ09 will ask: "地域を選択してください" (Select region). You must select "Japan." If you select "Other," the unit will lock permanently and require a service center reset. Carrozzeria AVIC DRZ09 Navigation-installation disk
After calibration, the disk writes 47MB of firmware to the internal flash. This takes 8 minutes. Do not touch the brake or open the door (vibration can brick the unit). Carrozzeria AVIC DRZ09 Navigation-installation disk