I believe you are talking about this?
A/C Control in the middle part:
http://postimage.org/image/2cgbr90x0/http://s2.postimage.org/nm3y23hia/evo_pics_interior_018.jpg
A/C Control in the bottom part:
http://members.chello.nl/%7Eg.vandebroek3/EVO/5.jpg
The first type A/C Control only come in RS Variant of EVO VII-IX MR
The second type A/C Control only come in GSR Variant of EVO VII-IX MR and EVO IX GT as well
It is not possible to retrofit the 2nd type A/C Control in 1st type A/C Control easily(You would need the wiring harness and sensor for Auto A/C Control)
If you were to do that,might as well as source for GSR unit in the first place
All of this applies to JDM EVO only BTW
Hope this clear everything up