about the headlamp fix, i tried blue magic plastic and plexiglass cleaner, and used it by itself, and it worked fine. I didnt sand it or anything. Mine were pretty bad, it was on a 93 t-bird. I was told if it didnt work, you could take a rag dampened with acetone (or any paint thinner other than mineral spirits) tape a bag under your head light, rub that on there, and then come back with the plastic polish, and it is suppose to work beautifully.