use google translate for a few functions concerning music playback. most of the other functions concerning maps, tv, fm radio, and stuff are customized to japan and are useless here. An no, in many of those radios the language cannot be changed because they were meant to be JDM. changing to an equivalent aftermarket radio costs between 30 and 40k. so it’s between a rock and a hard place. android systems on newer cars could be better.
Use FM expander to get a little bit more channels, if you want more from it you will be disappointed. They are only useful for the reverse camera and a few FM stations, in short they are pieces of shiet