Behind the driver's side rear quarter panel we discovered our second problem. Unbeknownst to me, the car was apparently struck hard in the rear quarter panel during prior ownership. This makes for accident number two, and though the outside looks smooth (I hope there's no bondo), the inside is as wavy as can be. This also explains why the driver's door showed signs of a repaint (paint on top of the plastic). Add this to our "fix-it" list.