key compantants you'll need for the retrofit, entire column. Column support beam (its the part that runs under the dash and holds it up and its what the column).
You can just wire up the motors directly to the switch with a couple of relays. U'll loose the memory features and the feature were it moves in when u put the key in/out. else you have to get the module from behind the back seat and rewiring EVERYTHING because the modules are different.
also u'll need the lower dash panel under the steering column.