Need help removing door panel...

So I am trying to get the door panel off but I can't seem to get it. I took off the mirror controls, removed all the screws, removed the power window controls and the hidden screw behind them, removed all the screws for the 8" woofer but I still can't budge the door. And I can't seem to get the woofer out either. Am I missing something? Usually there are just some clips after the screws are out and the door just pops off. Can anyone provide some insight?

Thanks

Thanks for the tip but I have tried that already. My old car was like that too. I can feel there is just one thing holding it in place but I can't see what it is. I figure it is some hidden screw somewhere that I haven't found yet, that is why I was hoping someone had an easy answer.