Another thought...
As with my coupe, to which I also made this mod, the tech ended up CUTTING the studs that held the dummy unit in place because these things are fastened on at the factory with lockite that just loosening the nuts is extremely difficult.
All this to say, if you are going to make this modification or something similar and plan to do it on your own; just be prepared for this problem...other than that, the installation is pretty simple and straightforward.
Happy motoring!