Well i had a go at doing it - the wires coming out of the reverse light are purple/black & black/white. I located the main loom coming down the tailgate, all the purple/blacks seemed to be going to earth, so I tried the black/white, but no joy.
Think I'll get a mobile autoelectrician to do the final connection for me to make sure its done properly!
Alfaitalia, i know what your saying, btu i had it on my last Alfa, and its just a 'nice-to-have' thing reallly. These are gloss black sensors on a black car too, so you hardly see them.