Radio/Speaker Questions

The original A body cars that came with both front and rear speakers had a factory knob (just like the center radio knob) and Chrome bezel that said Rear Speaker on the bottom curve of the dash frame. It let you balance the volume from front to back. I used to have one on one of my Darts and I see them at swaps every once in a while. I sold one to a local Mopar parts dealer a year ago, with all the wiring. Do you want me to see if he still has it? If he does I can connect you with him.