Looking for a rear seat
 

I have a 02 SS with tan leather interior. On the lower part of back seat, the leather is deteriorating in one spot, I don't know if something was spilled on it or not. Does anyone know of which other cars have a rear seat that would fit my Monte? I would think maybe the Grand Prix, Malibu, or maybe Impala.

Or does anyone know a web site that I could look up parts that are interchangeable?