I just got pulled over the other night for my license plate light being out (thank god I wasn't smashed or anything), so I got the bulbs but I can't figure out how to put them in. I was gonna just pop off the cover, but it didn't seem right and i don't want to break anything. Does anybody know if that's how to do it or not?

Also, what size is the factory woofer in the back?

 

It depends on the year but on my 98 Deville, it was 2 star shaped screws holding the clear plate up. It wasnt that hard to change.

Hope that helps...