i'v got a 02 plate one and had no bother with mine. if you want to take the cd player out and its the same shape as mine (the 1st n16's) then you pop the lil storage compartment above the blowers then grab the front and pull that will pop off and then the lil hook in the passenger foot well on the center console, put ya finger in the hole and pull it and the bottom part will come off, then you undo the 4 or 6 screws and thats it, its out! simple. but if its the newer shape i dont have a clue mate.
hope this helps.
knight rider.