Honda crossroad RT2 user manual - CR-Z Honda Cars & Trucks

HONDA INTERNAVI CAR NAVIGATION SYSTEM
I am in srilankan. I have bought a 2010 Honda Cr z imported from Japan. The car has an imporessive Honda Internavi Car Navigation System which intergrates Japanese GPS, mobile phone, reversing camera, audio, TV, DVD, CD etc on a touch screen and steering wheel control BUT all graphics and buttons are in Japanese script. Unfortunately the car didn't come with any instruction manuals. I want to know anything anyone else might know about the entire system, in English language please.

The audio system seems to rip CDS to a HDD.
The radio still receives a Japanese station
The TV picks up some local channels but only audio
The GPS still reads Japanese cities but is active, as if we are driving in Japan!

Plesae contact me if you might be able to help with providing English language instructions manuals, or information about how software might be updated to srilanka GPS and English instructions.

Cheers experts!