Have you anything? Like the switch to the right side of the steering column? If you've anything there it may make the job simpler. If not, yes it's as simple as you describe.
Out of interest, have you picked up a new window with an element fitted or are you fitting a self adhesive type aftermarket element? If a new window, have you checked continuity from one end of the element to the other. Don't want to fit it & find it ain't working anyways!
Interested to know which, cuz mine ain't working & it's bugging me!