whole dash has to come out because the airbox is stuck behind the knee bar. you have to take the wipers and scuttle trim off as well as there are some nuts that hold the dash inside the scuttle area.
oh and when you come to take the column off, dont bother trying to undo the shear bolts instead undo and remove the nut & bolt holding the steering column to the universal joint in the footwell. Pull the knee bar forward with the column still attached, just need it to come forward enough so you can pull the matrix out the top of it.
set aside a day to do it, its not particularly difficult but its fiddly and there is a lot that has to be taken out before you can get to the matrix.
