I got mine off today... ermm not exactly the right way... screws along the bottom 1 in the rubber seal, 1 big one under the plastic cap under the handle area) above the pocket, Heres the naughty bit after i popped all the door edges and lifted the door panel upwards so the window rubber unhooks I could see the last screw (the one I could not see how it undoes on previous attemps) I still could not work out how to get to the head !!!! there are no covers over it and its right in the middle of the door behind the hand well in line with the control panel for the windows. After much frustration I lost the plot and got a saw the door panel is secured via a plastic L shape type of bracket, SO I CUT THE B****Y THING OFF. . And geuss what... yep the panel just came off no problem...
Note : Its quite hard to get back on you need to get the window rubber back in place first and go from there,
After all this i still never got the speaker
jac