I actually got a start on the mirror problem. Keep in mind I am working on X5 mirrors but the problem seems to be the connection to conductor grid which is riveted and the grid appears to be very, very thin and delicate aluminum foil embedded in a really tough plastic! ;( Not sure how I am going to get contact to the foil but am trying a few things and will post an update what I find out.

__________________
1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)