Dont try and pull the grills off, as they will break! They're not meant to come off! follow my guide? Its basically stripping the whole back of the interior out of the car - if you've got a spare afternoon, easy enough! Although if you dont want to drill holes for the new speakers, you can buy adaptors! I did notice quite a difference after changing my back speaker in the quality - as the standards are pretty poor quality in the rear! I havent changed the front as these seem alot better. Something i will do in the near futur though!