How do I remove the rear sub woofer?

[TheVarmit]

I have a 2001 Explorer Limited. My rear sub woofer is blown and I can't figure out how to remove it from the right rear quarter panel. I removed the screen that covers the speaker, then removed the 8 screws that hold the speaker in place, but the speaker will not come out of the hole. It will turn back and forth but will not come straight out. Haynes Repair Manual proved once again to be useess, no details at all. Guy at Circuit City said I'd have to remove the entire panel, if so, why a removeable screen and the 8 screws? Any help would be greatly appreciated.
The Varmit

 

[MONMIX]

The guys at Circuit City was correct.
There is a bolt comming out of the back of the magnet of the speaker, bolting it to the enclosure.
Pull the trim panel, pull the enclosure, pull the speaker.