I took a few off recently, on 97-03 junk. Those wires running across the four holes (not electrical wire, but small rods) visible in Red's pic are what you're dealing with. The pegs on the back of the airbag have notches and when its shoved in far enough upon installation, the rods snap into notches on the pegs. The whole deal is spring loaded, so once you pop one corner loose it sticks up. A medium size screwdriver works best, and I have done very few that just pop right off, especially since its near impossible to look at and do all at once. I should make a visual guide for this, it comes up a lot (airbag removal) and I have a column out of the car.
