Dave, I remember reading something about cleaning the inside of our headlight housings. You may have to remove the headlight assemblies for good results.

Sew a metal piece of something, dime size, into a small piece of terry cloth or microfiber. Drop it in the headlight housing so it falls against the inside of the lens. With a strong magnet, wrapped in cloth, drag the metal ball around inside, from the outside of the lens. I'm sure you can work on this idea.

James