I've used MFM Window wrap, purchased through ABC supply (www.abcsupply.com) It's the stuff builders use around cutouts in new construction. Self adhesive (ala Dynamat), asphalt fiber layer for sound deadening (ala Dynamat), and a shiny silver foil backing (ala Dynamat). $50 did the whole car - 2 layers. jeff 66 Monza vert 110 PG power top