Those look like they are pre 21. Taking the wheel off is straight forward but transferring the buttons over is where it gets a bit tricky.this might be helpful as a partial hints:
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and:
How to remove steering wheel + AIRBAG Mazda CX-5 2013
Návody na demontá* Volant + AirbagDémontage du volant Airbag How to disassemble the steering wheelCómo quitar el airbag del volante***** ***** ***** ****** *...www.youtube.com