Hmmm. Well question is do you want a navi on that small premium screen or a full tech navi set up?
Problem is the tech package has a completely different center console. You are completely missing the destination button the techs have so a factory navi I figure is out of the question.
You may be able to set up a double din but Im not sure if you can set that up to the console controls and wheel controls.
You could get a touch screen but that would be a pretty far stretch for easy use.
Those are the best ideas I can think up.
Probably be easier to swap the k24 and tranny into a tech model