Hi,
Thanks for the great advice. I found that a suction cup for drain clearing pulls the unit out quite easily. It must just be positioned as high and as close to the bootlid side as possible where suction can be attained. Just give it a short, sharp tug making sure it is directly backwards and in line with the clips. Take care not to break the lens cover if the suction is too much and the clips are too tight. My suction cup let go before anything went south. I filed the clips down a bit to reduce their grip for the next time.