[Dan]

jamie have you got the max power haynes manual? cos it tells you in there how to remove the wiper etc!

but to remove the wiper just undo the nut that holds the wiper on the spindle, lift the wiper arm so its horizontal and if it aint a bastard it should come off if you wiggle it about a little! (dont be harsh as you'll break the rear window!!) you may also need a puller to do this but mine came off with a little persuading!

then open the boot take off the black plastic trim, disconnect the wiper motor, and there should be 3-4 nuts/screws holding the motor to the boot undo those and then the motor should just come away from the boot!

then you just fill the hole with the grommet!

with the badges you do know u'll be left with holes in the boot! id say heat em up slightly and carefully ease em off!