It doesn't even unlatch, when you press the trunk button it makes the sound like it wants to open but doesn't pop open. I climb through the back seat to pull the emergency switch and it opens that way.are you saying it won't pop up, or that it doesn't unlatch?
If it's not popping up, get new trunk lift struts.
If it's not unlatching, the position of the latch might need adjusted side to side or front to back.
^ This.Try lifting the rear deck while you press the button.
them 05 up cars lack that fancy trunk key lock stuff