Plastic Seat Back Removal

Well I've chased down all of the vibrations except one big one and I'd like to get this one resolved over the weekend. The plastic cover on the back of the rear seats is vibrating against something inside.

When I installed the subs, I had the seats out I tugged on it a bit to see if it would pop off but it seemed like it wouldn't come off like that. I didn't want to try too hard and snap something. If you've removed them, can you give me an idea on how they come off?

Any help would be appreciated.

 

I removed mine a while back... i believe its 4 screws for each seat back. The screws are hidden under a tab you can pry off using a flathead screwdriver or knife

 

There is one screw hole at the bottom in the middle and no screw caps anywhere. I think it slips down or it's hooked at the top but I'm not sure.

 

my seat backs are in the garage, i'll take a look at them later tonight

 

Much appreciated.