Under the door handle you should see two plastic "plugs", take a flat head and pop them out... you will see one torx 30 screw in each whole. Unscrew those and then start prying the door panel off (it helps to pull the door handle, as if you were opening the door, to wiggle the panel off... youll see)
On the back of the 5 1/4 youll see wires from your head unit plugged in, and wires leading up to the tweeter... whatever wire from the head unit goes to the red wire (is your positive) and the other wire from the head unit if your (-). The colours are different for either door.
I did this last week.. I spliced in my tweeter wires into the headunit wires then wired it into my coaxial 5 1/4's, so as to keep my stock tweets.
