A high-quality, FAT32-formatted (2GB to 8GB is usually recommended). A PC with an SD card reader to transfer firmware files.
The Carrozzeria line was developed by Pioneer specifically for Japanese consumers, featuring Japan-only map data and radio frequencies. Consequently, there is from Pioneer to change the language. The unit's operating system was deliberately built to be monolingual for its local market. An owner, as noted in the Drive2.ru article, confirmed the unit is "truly JDM" and its language cannot be changed. Pioneer Carrozzeria Avic Drz09 English Software