If you have a 1970 knob style radio then it is an AM , and therefore the right inner knob turns along with the outer knob , Bendix radio, rh shaft is a one piece used for tuning only.

If you have an AM FM with knobs, then you have either a 1972-74 radio or
something other than E body. In which case, if it is stereo and not mono, the
RH inner knob does control the left/right balance.


Greg

gregward@mchsi.com phone 256-852-0955