it's piss easy to remove dude..
Take out the central vents, and you'll see two screws at the top corners -> take them out.
Back of the screen (windscreen edge) you'll find a central section of the screen housing that will pop off -> Pop it off and remove the three screws
You'll now be able to lift out the screen (start with the right edge -> lift it up and then move the screen right and up to give enough clearance for the motor.
Disconnect the wiring harness and then the screen is out of the car completely.
Now, to get to the actual scree - it'll be piss easy with the back already removed!
Disconnect the cables from either side of the board that lead out through the side holes, then remove the blue clip you can see in the first pic.
Flip the unit over and on the other side to the motor, you'll see a small black plastic ring that's sort of like a big black washer.
Carefully prise this away from the hole (making sure to release the little back clip - you'll see the one I mean
) as you do.
Once removed, you should be able to wiggle the screen up and out, carefully feeding the cables through the holes as you go.
Finally, if memory serves, undo the four bolts holding the top circuit board, carefully lift it and remove the four bolts holding the green screen mounts.
Carefully lift the whole thing, making sure you carefully disconnect the light sensor and any other cables that are getting tight.
And then you're done
All in all - it's about 30 minutes work the first time, and about 5 every time after that!
Really is simple dude
Putting it back together is just the reverse, and once all done, simply click the screen cover in place, sit back and enjoy your handywork!
