Hm
I'm not sure
I don't recall the colour of my plug- I retrofitted cruise to my Jan 04 build E85, if its not pi55ing it down tomorrow I'll see if I can get a photo, but I think it was similar to yours?
Mine was plug and play, the only reason I am 50/50 is that the change happened I think on Oct 04 build cars (to not fit full looms etc)