Hmm, there are more than 3 wires going into my mirror.
If memory serves me correct there is a green, brown, white, red, black, black/red, and one more that is dual color.
Unfortunately i don't remember any pink. Ill take a look again later tonight.
Also, the pins from the mirror tap seem to be a bit big. I have no trouble inserting them into an empty hole, but when i try with one that has a wire already, i can only get in just a bit, lets say half way at most. Dont know if that is enough, and maybe part of the issue?