Where exactly do I put the foam? Between the shelf and the window or between the two rear parcel sections?Neoprene Foam Strip Roll by Dualplex, 2" Wide x 10' Long x 1/8" Thick, Weather Seal High Density Stripping Non Adhesive – Weather Strip Roll Insulation Foam Strips - 10 Feet Long https://a.co/d/i3w8la0