Retrofit C55 head-unit or HVAC into a C32?




I'd imagine that especially the C55 head unit would be a ***** and a half, due to using the whole separate system supporting it (DB2, or w/e it's called?), but how much different are the digital HVAC controllers? I've never really found any good place to see the internal differences between the C32 and the C55, past the obvious.



