First I took the door panel off, it comes out very quickly and easily. The access to the track is behind the black plastic insert near the back part of the door above the handle arm mechanism.
Looking inside the door, the red outlines the window track:
To take the track out it requires one torx be removed:
Once that is removed you can pull the track down from the window trim liner itself. In my case that torx bolt just held the bracket...and the track had already fallen down into the door.
You can see old vs. new. Immediately you notice the new track doesn't have the nut welded into place, which is odd it came from the dealer like that, and I double checked it was the right part for my model year. No idea why Volvo makes them like that...
To get the new track to work I didn't have any nuts that were that size, so I re-used the old bracket. Also there isn't much room in the door so maneuvering a ratchet back that would be tough, this method is "self tapping".
Here's a test fitting:
I taped the bracket on in order to install it. You basically have one shot, if the old bracket fell down into the door it would be lost forever.
Here it is lined up after putting it in, I just re-used the old torx bolt that I took off and added some loctite onto it.
Hopefully this helps someone else, it took me awhile to figure out how it was installed, I couldn't find it in the Haynes. I know there is a lot of talent on this board and you guys can do it with with your eyes closed but it took me an afternoon!
-matt
and sorry to ask if it seems ridiculous but... How did you removed all the panels to get to the window mechanism?