Looking at doing the same thing. If you have any luck with obtaining part numbers/pricing on the required parts please post them. I do not have the dual climate control so that may take some digging on my end to find the correct bezel. I'm also assuming one would need to do some software updates with AlfaOBD.
8.4" to 12.1" screen replacement
I would like to switch from the 8.4 to the 12.1 what do I need to do to make it work.