Thats a very interesting find.
This looks like the climatronic off a 2010 Passat New Lingyu from China.
As far as I am aware the illumination on these is white light (not blue) and the wiring would be similar to the later Passat 3BG facelifts with a lot of CANBUS connections for the functions.
No one has ever been able to confirm to me 100% that these later units would fit in an older mk IV.
Maybe someone can confirm whether any climatronic will work in any car once you softcode it to the car?
There is a matching RCD300 radio that goes with it in silver finish. Also a touchscreen sat nav.