Rattle in rear captain seats

[Javisan95]

Hello everyone, I recently traded in my midnight lake blue 23 Kia telluride S for a wolf grey 25 Kia telluride SX-P X-Line. I love the car but the rattle in the rear seats is driving me nuts. I’ve sat in the back and have narrowed it down to a rattle when I hit the leather side of the seat, I’m not sure what it is but something rattles inside both seats. Is anyone else dealing with this issue? If so, have you found a solution? I would highly appreciate any answer. My older telluride was not making these rattles and it also had captains chairs,