How do you remove the back seat of a Mitsubishi Magna?

i have the same issue. i need to take the back seats out so i can put my fusion 6x9" in the parcel tray. I have only been able to remove the bottom of the back seats which come out first but not the back rests of the seats which should come out after the bottom has been taken out. There are two clips underneath the back seat at the front. (One clip for each seat). You only have to unclip them and you will be able to take out the bottom of the seats. Hope this helps ya