OK evidently I am ********... took the old one off, that wasn't too hard. It appears British Pacific sent me the wrong part - its wayy too big, and not even the same shape. But thats another story.
I dont see any conceivable way to get my old one back in... especially without breaking it. There are 2 electrical connectors, then 2 slots running vertical on the mirrors back. dont see any brackets, per se. If you manage to get one side in on the mount, there doesn't seem to be any way (short of alot of force) to get the other side in.
The shop manual doesn't cover this... so, I am stuck with an empty mirror housing, and the wrong replacement. Do I need to take the housing completely off and apart to get the glass back in? i don't wanna break the replacement, when it comes.
This is the motorized mirror on a 2001 d2.