Neither!
To start with, mine was cut back-wards just like yours. Turner out to be a good thing. I used them to "play" with. When I installed them they did not fit very well in several respects. At the front, against the seat back panel or at the top. Did not follow the contour of the trunk. Not very sure they were for a 4 door.
After several trim and tries I got them to fit fairly well. By the way, that hole came in very handy getting them in and out. I figured that's why it was there???
I'll get you a pic of the finished panel shortly. But in the meantime this is what I figured, with the help of some pictures I have on file. By the way, in my photos, their is no signs of any fasteners. Usually, after many years, they begin to sag and slide out of place.
I have no idea if your Aero is anything like this. May have to pull back that Burlap

Off to get you a few more photos
He's back, How it fits around tail light.
How it fits behind lip.
How it fits at top. Sort of slides in slot.
How it did NOT fit very well at front, but I let it go.
One word of caution. GO EASY. They "Kink" easy. Use your wrong ones to practice with.