well, starting at the beginning..
to take it off, undo the bolts, and then go inside the engine bay, push down the tabs on top of the indicator units, and pop the indicators out. there will then be white clips below where the indicators were, take those off each side. be gentle, but just pull it off.
then unclip the black plastic bit, and disgard. i found it easier to cut off the clips on the coloured bit with a stanley knife, then lay the mesh onto the back of the grill, making sure its completely level, or itll look bad. i then cut it with mesh cutters,(similar to normal pliers) and i fibreglassed the mesh in place and left to dry for two days.