Originally Posted by semtex

I also put it on the lower outer edge. But here's an idea -- take a piece of scotch tape, fold it over on itself so that it's double sided, and experiment. Stick it on the outside, get in your car and look at it to see how it looks. Pull it off and stick it back on the inner side and repeat. Then when you decide where it suits you the best, you can remove the permanent backing and apply.