WHAT NOW? How's this come off??

I'm changing out the steering bells from auto column to auto floor style.....Got this far, pretty self explanatory......removed a rigid outer snap ring, a loose fit inner snap ring, and came to this monstrosity under all the switches and junk.

I can see no way to get it off......tried prying lightly from behind while applying a light hammering to the steering nut.....didn't move.....No snap ring in sight....I have to get this off before proceeding to the bells I need to get off!

WHAT DO I DO, OH WISE AND LEARNED ONES??? :dontknow:

I assume this is the "Ignition Lock Plate", or something close.

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