Removing door panles for 95 jimmy

I am having the toughest time removing my door panels for this car... its not as easy as it was for my 86 bronco II by far. But I need to get to my speakers b/c they keep cutting out and most of them aren't working, so i wanted to check the wire connections cause i figure they have shaken loose. So any suggestions about hidden bolts or screws keeping the door panels on? I believe i have gotten all the plastic snaps disconnected along with the visible screw under the door handle, and it seems it wants to come off but it won't.