Replace turntable motor

Hello,

I have a KitchenAid Wall Microwave/Oven combo. Recently the the turntable stopped spinning. I checked the coupler and determined that it is not broken and suspect the issue is with the turntable motor (the turntable now spins freely, I don’t remember it doing that before). I need to know how to access the underside of the microwave (at least I think I need to) in order to replace the turntable. I’ve looked online and can’t find any videos or instruction on how to do this. Can you please help me with this issue or provide direction to reference materials to complete this task?

Thank you,
Jeff Wessling