Hahaha, I just read the post and my dynamic indicators arrived yesterday. You just saved me from possibly having to buy new mirrors. I hope the screws on my F20 (2013) are in the same position. If they are I will confirm and maybe post some photos too. Thank you again.
So good news and bad news.
Your method works and it's quite easy once you get the right position of the mirror. You can also remove/unclip the cover in the same way, by lowering the mirror down you can see the clips.
Bad news, I cracked a mirror
. Basically, I went with the wrong angle on one of the screws and it was a little bit stuck, which ruined the screw and the screwdriver wasn't able to "grip" it, and the next size was too big. I tried to remove the mirror but ended up using the wrong side of the plastic thing and putting too much pressure on the corner of the mirror instead of pushing it from the centre. I also realized, too late, that if you remove the cover, you can actually push the mirror out, or even undo the clips. (too late for me now).
The second thing I want to mention, maybe it's just my model, but the indicators are only good from a front view, but rubbish or dangerous from the side or behind. I posted 2 photos to show the quality in the same daylight and what I mean from the side perspective. Before I could see the light from inside the car, but now unless I watch on the car dashboard or hear the click, I wouldn't know I'm signalling.
