I had to replace the housing for the Zenon headlights on the GS400 I just purchased ($1,200 each at the dealer) so I found some online for $200 each. One of them was very clear but the driver's side lens looks pretty rough. It is not really scratched but it is marred and almost has a hazed look in places. Is there a product that I can use with the pc to clear this up or at least minimize the problem?