Thanks Mwalsh and Zhaohui!
Your instructions helped me alot. Just adding some comments for anyone looking at this old thread.
Even though I had bought the replacement lense module, I was dreading the replacement because it's been a while since I had to remove "finishers" (plastic panels covering the nuts and bolts and wires) or removed a spoiler. When I read, "cut through double stick tape and remove spoiler, I decided to put the new part on a shelf and wait until I had a free weekend.
When I reread this thread, I noticed some subtle clarifications to the proceedure from Zhaohui. I was willing to give it a go when I found my small 90 degree Phillips screwdriver and read that one needn't remove the spoiler, just loosen it. I had tried to remove the black plastic cover without loosening the spoiler, but it was too tight, if only I had been able to find the nifty low profile ratchet screw driver.
I shot over to Harbor Freight to try and find another lower profile screw driver, but the new model that they had there was a bit deeper and I knew that I would still have clearance problems. On the way home, I became resigned to loosening the spoiler.
First, I tried cutting down the bit to get a little more clearance (hardest part of the whole installation), but it was still too tight to easily access the screws. Then I found the super low profile ratchet screw driver in a drawer - gave that a shot, it worked, but I decided to try and pull the finishers. Easiest thing in the world - pulling the finishers. If I would have just done that, I would have been done in 20 mins.
When you pull the finishers, the nuts holding the spoiler on can be easily loosened with a socket wrench. Once loosened, you can continue loosening by finger, but leave the nut on the bolt - do not remove. Loosening the spoiler will give you just enough room to be able to use an offset screw driver to take the black plastic cover off and then the clear plastic led/lense module off.
Once loosened, I was able to use the latest version of offset ratchet screw driver from Harbor Freight. If you have a working thin version of the Harbor Freight screwdriver, you might be able to do it without loosening the spoiler, but it really only takes about 10 mins to loosen the spoiler and it will make the rest of the project much easier.