1971 340 Duster - rear speaker fader switch?

where did the factory put the rear speaker switch on a 340 4-speed Duster - any options change the location?

I believe centered from the steering cover and the reverse light.
I can check mine.

Dan, IIRC didn't the dealer actually install the fader switch?

can you get a pic?

was there a rear speaker available from the factory with the AM radio or AM/FM, or was the rear speaker installed with the stereo cassette player ONLY? did the cassette have a remote mounted fader switch or was there a L/R (F/R) balance knob on the unit itself?

On my Duster, which was an AM cassette player car, there was no rear speaker. But the wiring for it was tucked under the carpet or rear seat by the factory.

Sorry centered reverse light to ashtray
Mine is 70 not sure if they are different