What wing???
If you are talking about the "spoiler" that pops up at 70mph than open the trunk and you'll see three plastic "rivets". To remove the rivets you lightly punch out the center piece of each rivet (be sure you do what it takes as to not lose these parts). Once the center piece is removed pull out the rivets. At this point you can remove the "spoiler" cover (be careful as not to damage the paint). Once you get to this point you will see two socket head cap screws (one on each end) that you need to remove to pull out the rest of the "spoiler".
Linear Mode
