Passion for radio — logbook Toyota Corolla Spacio, 2003

I am gradually implementing a localization project ...

At the initial stage, we have a dealer Toyota monoblock fudjitsu ten nd3t-w55:
Support for DVD (pal), mp3, CD, FM (jap. frequency range)
Parking camera with controlled markings, AV input and voice control. 3D navigation in Japan and voice guidance in Japanese and only in Japan, respectively. The interface is partly English, mostly Japanese.
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After the firmware:
Does not work: dvd, mp3, cd, opening the tray from the wheelbarrow, removing discs from the CD drive.
Trimmed by the Japanese: Camera layout, 3D navigation, voice control, voice guidance (seemingly curable) Equalizer control, but the presets change.

We have: Fully functional 2D navigation with RF maps. Completely English interface. FM frequencies have changed, now everything is human.
Serious subwoofer networks have appeared ...

I continue to work.