I need to get access to the middle seatbelt pully system and the rear window (middle) brake light assembly. There both noisy and rattley and I want to hush them up a bit?

So you'd jsut need to getthe carpet off then?

Well removing the rear pillar (C, D pillar? I dunno) plastics will make it easier. Then remove the babyseat thing with a hex key, unplug the two christmas tree clips, should be two.

Give the carpet a fair yank, because the glue that holds the rear windscreen in will probably have melted into it slightly.

O, and obviously remove speakers. You'll also need unscrew the centre seat belt from the floor of the car, so you'll have to remove the rear seat bottom to get to that. To remove that screw you'll need a T20 (I think) fitting.