Hi Jason, since it does it while the vehicle isn't moving and does it when it is being bounced, it is most likely related to something with the suspension.
There is a voluntary lower suspension link replacement offered by Nissan that is related to a rattling or knocking nose. See pic 1 below.
I attached the voluntary replacement information in pics 2 and 3.
I can't be sure if this is what you are hearing, but I have a feeling it is.
I would contact a dealer about this. It is being done at no charge.
Let me know.
Joe
See pics below.
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Thursday, September 7th, 2023 AT 6:07 PM