Have you ever seen any Dart, Valiant, Demon or Duster with a rear window defroster?

My 73 dart sport export car has the electric grid type in the window. Thats kinda rare since you usually only see them on cars with fold down rear seat.
I have seen plenty of the blower type ones over the years. I think I have a couple of those setups out in the shed. The rare one is the blower motor that has an enclosure that lets you run rear defrost and still have two 6x9 speakers. I have a couple of those in storage. They may not have been available on A body but I know they were used on E and C for sure.