Can anyone tell me where this parts fits? Color is same as interior but I don't remember pulling it off.
I pulled the drivers side vent and trim, windshield post, threshold trim, kick panel and rear seatbelt anchor. Also pulled the drivers seat and rear seat.
Thank you for the help!

 

That covers the inside of the outer drivers/passenger seat rail.
Move both seats and look at the back of the seat rails, you'll see which one you're missing.

 

Thank you.