Oh that's the gap, i thought he meant somewhere else, at the top of the window?
Yeah seen the door panel, not very healthy for the electrics that really!
Apparently main thing with door panel is pushing your knee in it at the centre, letting it flex, then there are 3 or 4 contact areas that you need to unhook, at the top of the panel, you should be able to see them, these panels have a lot of give in them, first remove the rubber seal though, what I couldn't figure out is how you then slide the panel off,