Would anyone happen to know what the knob in the right hand side of
this photo is: http://picasaweb.google.com/josephpdore/1982AirCooledVWVanagonWestfalia#5386215009824231090

My best guess is that is a left/right balance or front/rear fade knob
for the original Blaupunkt Autoradio

Thanks,

Joe
Stratford, ON, Canada