Carbon seat rattles

Anybody else having the passengers side carbon seat back rattling when driving? It's not the seatbelt latch rattling against the carbon - I can move that and the issue still happens. It's the actual seat back that has a tiny bit of play in it when there is no passenger.

Looking to see if anybody has devised a fix. My experience is that dealerships aren't the best at solving rattles so I'd like to take a stab at it first myself.

 

Unfortunately it's not touching anything. It's the seat back itself that wobbles a tiny bit and makes rattling noises.