How-To: Clear Corner Install
There are different ways to do this including removal of the front and rear facias... this just how I did it.
Disclaimer: I'm not a certified mechanic and should not be held responsible if you screw up your car or yourself :)
Clear Corner Marker Install Tools:

These are the tools I used for this project. I was a bit limited because I did the work in the warehouse at my office and did not have access to all of my tools. The screwdriver and wrench were included in the MC�s tool kit in the spare tire area.
The Markers:

This is a photo from the back showing the tabs and bulb socket.
Front Install
1. Turn the wheel so you have clear access to the area behind the marker.

2. Remove the retaining clip holding the plastic wheel well shield behind the marker. You should be able to use a Phillips head screwdriver to partially back out the screw then pull out the entire clip. 50% of the time the screw would not back out so I had to use a flat head screwdriver to pry the clip out.
3. Gently pull the plastic shield back until you have access to the upper nut (note: the lower nut is shown in the photo above).

(10 mm nut)
4. Remove both nuts from the tabs using the 10 mm wrench. I was able to loosen the nuts with a couple of turns of the wrench then remove them by hand. I found the upper nuts a bit more difficult to reach so I placed the 10 mm socket on the nut to give me a bigger surface area to grip with my fingers. The space was too small to use a socket wrench.

5. Push the marker out from the back. Do not try to pry it out from the front! I found it easier to push from the top. There seems to be sealant around the bulb housing at the top, so be patient while that seal is broken.

6. Once the marker is out, unclip the wire by pressing the clip at the top and pulling it away from the socket.
7. You will need to remove the black part that contains the bulb from the socket in the marker. Do this by slightly twisting to disengage the part and pulling it out.
8. Install the bulb in the new marker. Note: there is an O-ring that will need to be compressed to prevent moisture from getting in the marker. Push down and twist to engage the bulb in the socket.
9. Pre-thread the nuts on the new marker by putting them on and turning a couple of times. The nuts have sharp centers that will cut groves in the plastic tabs on the back of the markers. (Remove the nuts before installing)

10. Reattach the wire to the bulb.
11. Slide the new marker into place.
12. Reattach the nuts on the tabs.
13. Push the plastic wheel well shield back in place and reattach the retaining clip.

Rear Install
The rear is very similar to the front but more difficult since there are more retaining clips and the wheel cannot be turned out of the way.
1. Jack up the rear of the car to give you access to the work area.
2. The rear wheel well�s plastic shield entirely covers the back of the marker so you will have to remove more retaining clips. I removed the three shown below:

I was able to use the screwdriver to remove the top two clips in the photo, but it was too long to get to the bottom clip. I used the Phillips head drill bit to reach this clip.
3. The plastic shield tucks under the trim and should pop out with relative ease. Gently pull the shield back enough to give you access to the nuts on the back of the marker.
4. Repeat the steps for removal and installation from the front marker instructions.
5. Once the new lights are in snap the wheel well shield back in place under the trim and reinstall the retaining clips.
