Also, and I speak from experience, dont skimp on budget for film. The old saying holds true here, you get what you pay for. Buying cheap film will not only look blurry, not match the hue of your rears and interfere with your radio, but will turn purple within a couple years, which is the ultimate Badge of Cheap. Do a little research on the various films - There are about a half dozen of types of film by several manufactures. The best option is having a lifetime warranty against all the above mentioned, plus chipping, fading, cracking. Anyway it's worth the time investment to get it right the first time.