Unless they did something different for the European/overseas market, the bottom mirror should NOT have a 16-pin harness. Should be a single row 7-pin. The only ones that got a 16-pin here in the US are the OnStar mirror because there are so many wires that need to go to them.
As for color matching them, that's a negative. The wire colors on the mirror harness will have nothing to do with any pre-existing wires in your car. You have to find out which is which on the pins in your mirror. I'll give you the general rule of thumb with all the Gentex mirrors I've dealt with in the US.
#3 Should be the back up/reverse feature. Need to go into Photoshop and fix that when I get the chance.