Undo the two remaining screws located either side of the shifter trim.

With the shifter gaiter/boot still attached, lift the plastic trim high enough to reach the underside. This will give you access to remove the clips holing the gaiter/boot the the plastic shifter trim.

With the handbrake in its upmost possition, and with a little shuffling, you will be able to remove the shifter trim - exposing the OEM shifter mechanism beneath.