Some of the clips Tesla uses should be replaced anyway if a panel is removed. E.g. Door panel clips gave up after a few removals.
Another tip is to add felt tape to all surfaces where the panels or clips meet. I spent 5 meters in a few millimeter pieces mostly on dashboard clip openings.
A bit of deadening material (but be conservative, you're only after resonation) on the backs of the panels is also a good idea.
Result: permanently rattle free cabin secured.