[CYCLONE_06]

Go to your local auto parts store, and get some 3M heavy cut compound. Get some 800 grit, or 1000 grit, depending on how bad your lights are. Get a mothers power ball or orbital buffer. Start out by wetsanding the lights. Just have the hose in one hand, and the sandpaper in the other, while running the water over the light, sand the light, as you are sanding you will see a white milky looking film come off with the water. This is the oxidized plastic. Just keep sanding until you dont see the white film coming off anymore. Dry the lense off and make sure the entire lense looks cloudy, or foggy. If it isnt foggy, keep wetsanding until you get it that way. After you have it nice and fogged up by sanding it, take the compound, and smear onto the lense with some sort of applicator pad or a terry cloth / microfiber towel. Then, take your drill with the powerball, or the orbital buffer, and just keep working it back and fourth into the headlight. Do it with some force, but dont push it so hard you break something. Repeat this process of buffing with the compound at least 3 times. After that, put your choice of polish or wax onto the headlight, and use the drill and powerball to work that into the plastic also. Viola'

I have done this on my PT Cruiser, my moms van, my dads dakota. It works. My body shop guy taught me how to do it.

~CYCLONE_06