Canada 8 track speakers possibly?

[chewychevy67]

I have 2 new 4x6 10 ohm speakers in their original delco boxes. I have not tested them but they have definatlely never been used or installed. speakers 7933741. May be possible that gm used these when they put speakers in the kicks for an 8 track player? I know they fit cause i mounted these up to see if they would. see pics below. decided to run a more modern radio player in this truck so i no longer need these . because of the unknown working condition i am selling these as cores. $50.00 shipped takes the pair. just the speakers. the grills are from 67 chevelle door speakers and can be bought as a repop.