Trying to install Meso turn signal lights in my 2021 and ran into a glitch

I have watched several videos on how to do this, but I think they added a tab on the 2021 models. See pic below. I can not get the signal to slide off this pin that is attached to the mirror assembly. What do you think I am
Doing wrong. I used a screwdriver to pin point exactly what is holding the signal in place and not letting it release.

 

That one is just tight. My drivers side was so tight that I snapped my old light housing and then it came apart. Try wiggling a screwdriver between it Maybe a shot of lube?

 

Pretty sure that Black piece where u have the screwdriver just flexes / pulls out away from the pin then the turn signal can be worked off the pin.

 

Thanks guys a little gentle massaging with a plastic body panel tool helped a lot. They are installed flawlessly without any broken tabs