Installing Cruise Control, thoughts Options

[97celiman]

alright so the 3 options i dont have for my car are premium sound, CC, and abs
i dont know why, i know it started life as a company car (partly why i bought it maintenance was spot-on)
my question is this, besides getting a knew steering wheel assembly (or just the CC wheel control part) what else is involved in installing cc? is this even fathomable? no i would not be doing this-way over my head, just getting the parts and giving to some sort of shop (or someone on here tweak *cough*)
does it involve messing with ecu/harness i know you need the computer in the engine bay, do you need other fuses and all that?

any thoughts would be appreciated
thanks

[97celiman]

well straightforward as it may be thats too much for me by myself, plus sounds like i'd need a new instrument panel which i didnt even think about, nvm all the wiring i have no clue how to do

in that picture is that am aftermarket cc or is that where toyota puts it from factory?