I read somewhere that these dont go on the outside of the window, they are like some kind of inside window frame application. Can guys tell me how to do this thanks.

 

Simple. Remove your weatherstripping in the window channel on the top and the two sides. No reason to remove the bottom. Test fit the ventshades. Now remove the plastic strip that covers the 3M adhesive on the ventshades. Then put them in the window. Replace the weatherstripping, but be careful not to rip it. Then let your window up to make sure it will close all the way. It may take a couple of tries until it goes up all the way. Repeat for the other 3 windows. Now leave your windows up for a day or so in order for the adhesive to set in completely.