I want to remove the plastic molding strips near the bottom of my 2008 Trailblazers doors, but peeling them back a bit it doesn’t look like my car is painted underneath. Has anyone else noticed this? It even looks like the paint stops right at the molding because I can see a lip. Is this true or is it something I need to scrub off to get to the paint? I don’t want to completely take them off to find no paint underneath.