Hi I have a 57 reg C4 Xsara Picasso Exclusive 1.6 diesel. Lovely car. The passenger side door mirror was damaged by a van. Casing broken & mirror cracked The price of a new one from Citreon is very high but i managed to by a new unit, but not OEM, at a much better price Problem i now have is that the new one doesn't have the kerb (puddle) light fitting I suppose i could take out the old kerb light and fit it into the new one However, the new unit comes with new wiring and so i will be a connection short inside the new one Question is, if i fit the new one and ignore the kerb light will this still be compatible with the existing car wiring. I hear horror stories of cars not starting, computers being messed up etc when making changes like this (pal of mine has a Punto which had problems) Any help would be appreciated Pete