got big problem.
Got US RX300 with radio without navigation (blue display).
I bought second hand radio form same generation RX300 from EU/UK (right hand drive).
Radio has been changed and everything is working but one thing.
Buttons on radio (audio, air con, etc.) are not illuminated.
When I turn on lights all buttons should lit up (everything else still lit up as it used to) but not those buttons/controls.
I believe all LED's/blubs are ok. It looks like there is one wire missing somewhere... Unfortunately I do not see a wire responsible for this function on any diagrams I have (radio/air con/navi/etc.).
Does anyone have any idea where I might find and info how radio unit is lit up???