Pulling the entire wheel to replace a button?? Are ya kidding me!?!
The switches are plug-and-play. Once you get them out, you just unplug the old, plug in the new.
I just took a pen knife, pryed it into the switch itself, and popped it out. Granted, I did this while sitting in a parking lot waiting for Target to open, but if you can get a hook or pick behind the whole assembly it just pops out.
A small set of needle nose could probably grab the outside edge of the switch also to pull it out.