Question for you all. The dashboard is split between two patterns: a cross hatched area nearer to the windshield, and a more solid matte area closer to the passenger compartment. Any idea what's under the cross hatched area? Can it be covered? I'm noticing a lot of reflection from it while driving. Bonus question. The exterior mirrors have this lines in the glass along the edge. I assume this is to defrost them. If I attach one of the blind spot mirrors and it overlaps the lines, will that cause an issue? Thanks in advance.