I didn't bother to read through all the posts, but watched part of the vid. I wrote up a how to on changing my steering wheel to the leather one. In the FWIW department, it is not necessary to pry the trim apart to get to the spring clips. there are holes in the back for that purpose. Furthermore, it is very advisable to disconnect the battery before you begin disassembly of the steering wheel. IIRC, there was mention of waiting 1 minute to allow any possible stored voltage to bleed off after the battery has been disconnected. Otherwise, you run the risk of having the air bag discharge. Probably would not be a pretty sight.
Here was my write up:
Note that this was for changing the plastic wheel for leather, but the disassembly process is the same.