If you don't want to do this you will need to push the seat as far forward as possible and angle to front as far as possible.
From the rear you need a torx bit T15 or T20 if I remember rightly and one screw holds it in you will be doing this blind without removing the seat you will need the T bit and a ratchet driver to do it at that angle.
Should this prove impossible which to be honest I think it will a T50 is required to remove the 2 screws on the rear of the pass seat tilt forward and you should have enough room for access.