Does anyone have a step by step set of instructions to replace the third brake light on the R50?

I recently had to replace mine. The lens uses LEDs. It does not clear the spoiler mounted to the trunk. I had to remove the three nuts that hold the spoiler in place, but was not able to remove the spoiler. It appears to be glued down.

Any tips / advise would be greatly appreciated.

 

repost this on the 1st gen forums, though, i am thinking of trying this in my r56 mc.