can anyone tell if the LOW BEAM PROJECTOR LENS inside the headlight are clean? mines are dirty so my lights are dim and instead of cleaning them I am just going to buy new ones. I am talking about the low beam projector lens inside of the headlight, not the covering for the headlight. Also this is a NISSAN 300ZX FAIRLADY Z HEADLIGHT, would it fit a 1990 300zx n/t?