Here's some pics of what I used to get the vents out. I searched around and couldn't find much except "break the old ones." A small screwdriver kept the tabs from going back in.
I completely and meticulously planned and measured the bend to match the length of the tab exactly. (Lol, yeah right.)
The bend on the other end helped with grip, actually.
Well, the idea's pretty clear. It took me a bit to figure out that I didn't need to remove the glove box or dash. I tend to overthink, lol.