There is info / pics on the Suma thread that describe it well. Take it slow. Put a screwdriver in the slot on the corner and twist. I had to reroute the defrost wires to get some slack.
I haven't had a chance to drive and test them out yet. The blue is different, but I dont think it will take long to adjust to them. They have the defrost and Bliss built in as an option.
I used 3 hole 1/4-20 T nuts and some Z nuts to attach the bottom in the slots. Drilled out the outside holes and used the center hole for mounting the plate. Used some rubber washers to protect paint.
Used a rubber expansion nut for the top.
Installed mine today. Probably took an hour, but I was taking my time. Took it for a test drive with the kids. No complaints of sun in the eyes or wind messing up their hair. One of the best mods I have done so far.