Epiphany

Hey all, I looked through the FSM about this and was unable to find anything so I'm hoping someone here might know. The channel sash on my rear drivers door was shot with a pellet gun or something and it pushed it in and ruined the finish on it so I'm looking to replace it, but don't know how to do it. The part # is 82223-JK000,and it is the trim piece that separates the two pieces of glass on the rear door.

Thanks