Speaker help

I have a 2001 Cavalier and I got some speakers for the back but I can't figure out how to get the old ones out. Can someone please explain how to get to the rear speakers? Thanks.

you have to let down the rear seats, unscrew the old speakers from the trunk and lift the cover on top of them and pull them out from the top. you have to sit the new ones in from the top also...hope that helps.