I recently clayed and waxed entire vehicle ('90 300E w/190K mi.) and now when I open the sunroof in "Tilt up " fashion, I get an unpleasant, relatively deep, squeaking sound - like rubber on metal.

I have tried silicone spray on the sunroof gasket and front edge of sunroof - to no avail.

Sound appears to be coming from front of sunroof.

Anyone experienced this sort of thing before?

All suggestions welcome.