By referring to the English manual for the Pioneer Carrozzeria AVIC-HRZ099, you can enjoy a range of benefits, including:

Pioneer Carrozzeria AVIC-HRZ099 is a Japanese-market model, meaning it was originally manufactured for use in Japan and does not have an official English user manual. Because these units were intended for the domestic Japanese market, their primary interface is in JustAnswer Language & System Settings

While you can’t buy a glossy official manual from Pioneer, the community has reverse-engineered most of the functions. Here is how to survive without the paper guide.

Some "MRZ" series models can be partially converted through custom firmware (replacing system files via SD card), but this is technically complex and carries a high risk of bricking your device.