Whith road vibration or if I thump the rear map light cover it vibrates pretty loudly inside. I need to remove it to see what is causing it. I have the over head rail and I guess I just pull down on the grey bezzel that surrounds the lens cover and it all comes off. Does anyone know for sure? I want to make sure I remove it correctly before I assume anything and go about it the wrong way.

 

Just pull it down, nothing complicated