as title states.
cheers
jason
pull them out.depress the little claps on the side and pull out.
i have just pulled mine out to use them for rear headrests and there doesn't really seem to be an easy way to do it. they are held in by clips that are around 1-2 inches or so down from the base of the headrest. i spose you could jam a screwdriver down in there to release the clip if you know where it is but it would probably be tricky. i had to cut the vinyl and foam up to get to the clips (but i'm binning the seats anyway so it doesn't matter)