buy a kit that is PRE cut for every window... do a search on the internet.. i found a kit for 65.00 then use TONS of the spray stuff it comes with.. the film slides around untill you get it perfect... then just start in the middle (on the top) and work your way to the edges with the squeege. then work your way down the window.... this comes with WAY MORE Detailed instructions..... I'm just giving you a breif rundown... I don't want to type a ton.. I searched on yahoo for "precut window tint" later, justin