i have a 2000 s-70 with the 8 speaker option. 2 tweeters, 1 in each door(4 doors) and 2 in the very back. how do i remove the ones in the very back. and what size are they. thanks for your help.

I believe they are 6 inch speakers(Round ones)
You have to remove the entire carpeted section in the back window.
It is held in by clips.Fold the seats down and then try to lift up on the carpeted peice.