NachoRT74, thanks for posting that pic, it helped a lot. I just got the old mirror out and a replacement in.

I'm very disappointed that the shop that installed the mirror didn't use the black clips at all.

1) They used a zip tie near the inner control, which was positioned too far from the control to prevent the cables from interfering with the window travel.
2) They added a metal bracket and attached it to the inner door via a bolt through the front clip hole. Fortunately I was able to remove this bracket with little trouble.