So, its bugged me since day 1 that the hatch 'lights' never did light up and were indeed just fancy looking reflectors. So I purchased a spare from ebay and am using it to test MOD.
Basically you can pry the unit apart (three pieces, front back and reflector) using a heat gun and a box cutter (be careful). I then went about trying to figure out how to incorporate LED's into the housing. The reflector actually sits about 1/4 inch above a mirror type piece of plastic that sits in the back section of the housing. Once you pry the reflector piece off then you can then just stick some LED strips onto the mirror piece (matching the contour of the rear reflector), put the unit back together and then wire it up to the hatch brake light.
I was just playing with it today and just placed one strip on the top section of the Reflector. Here is a shot, i figure ill start/finish this MOD fully in the spring.