Stupid question. I just had my headliner replaced by the dealer (after they damaged it) and I just noticed that when I press the brakes the third brake light on top of the cab is shinning through the headliner. It's as if there should be something between the headliner and brake light that the dealer didn't put back in. I've never noticed this before so I'm not sure if it's always been this way or if I just now noticed. Here's a picture looking out the back. It's hard to tell because it's dark but the light is shining through the headliner. It looks like just a reflection in the photo but it's actually shining through. Is this normal?