Can anyone tell me me why the Duster/Demon (and other A-bodies im sure) came with the metal cut out in the rear shelf panel to accept 6x9 speakers? Was it ever an option to have 6x9's installed from the factory or dealer? Just curious. Thanks!
Yes there was a factory option to have rear speakers.
Also the blower type rear defrost uses one of the 6x9 holes to pull in fresh air from trunk to blow on the window