You have to pop off the switch bezel at the top, then it just pulls out. You need a phillips screwdriver to remove the switch block form the bezel, then two more phillips screws behind the bezel to free up the door panel. You also need to pop out the bezel around the door handle.
You can then lift the door panel up, then out.
You may have problems removing the door panel with the Mach 460 speakers in place. You can pop off the grille on each speaker, then there is a small screw holding the speaker in place. Once removed, the speaker may be free or you may have to remove (or break) two small clips holding the speaker to its base. If you break the clips, don't worry - that one screw is enough to hold the speaker in place.
Good luck.