the same as you would mount a detachable tourpak to any 2014 touring that didn't have one. use the 4 point docking kit, buy the appropriate rack (solo or 2 up) and the tourpak of choice (chopped or king). screw it all together and voila, tourpak.
Ohhh... I misread his post...
my apologies...
Need the following:
4-Point Docking HW Kit (I went with the Black kit - 523000354 or chrome is 52300353 )
Detachable Two-Up mounting rack - Black 53000459 / Chrome 53000221
The actual tour*pak number will depend on style (razor, chopped, king) and the color of your bike...
It comes with a template to drill the holes on the tour*pak... you drill those, mount to the rack with supplied hardware.
Install of the 4-point is easy. Remove the bags, four bolts holding the trim... insert dock, bolts.... done...