Installing Overhead Monitor on 06 Silverado Crew Cab

Hi, I recently bought an Insignia NS-M10OHD 10" Monitor from ebay. I was wondering how do you take out the roof lights.. Do you just pull them down hard? Also, is there any way to install the monitor withouth having to drill holes into the roof? How can I know that the screw wont go all the way out the roof?:uhoh: Thank you very much for your help on this

If you mean the overhead console there is one Phillips screw towards the back of it...take that out and pull down.

Thanks a lot for your reply. I did not find a screw on the back, but I took out the lens and then it came off.