[heiyuu]

Hey guys!
I have a 180sx with analog climate control and I want to swap over to the digi one. Now I read through the how-to swaps on here and nico but they are all instructions for 240sx with regular non-auto controls.
My Q is basically what is needed for me to go from analog to digital? Seeing as how on the analog controls there is a temp setting [20c - 25c - 30c] and an "auto" fan option, it leads me to believe I already have the sensors and motors and stuff.
Would it be as simple as removing the analog unit and replacing it with a digital control unit? Are there any parts/features that the digital one has which the analog doesn't? Are the harnesses different?

Thanks in advance,
Alan