Unfortunately, it is just not that easy to plop a hard top on a Wrangler that was manufactured / left the factory with a soft top.
You will need to buy a Mopar kit... think it called a hard top kit (Cost = $180+-) and have it installed. There is a different mast that has the wiper controls that replaces your old mast. You have defroster & wiper stuff, hard top mounting hardware, other wiring and more. Yes, doable but will cost you $.
Note: To my knowledge, the hard top wiring kit and hardware needed are not yet avail. to order from Mopar.
On the JK, you needed a wiring harness, a washer fluid hose extension, a replacement steering column stick that included the rear wiper/washer control, and a dealer flash for the computer (otherwise the washer arm would not return to the "home" position when used).