1966 Valiant Stereo?
Here is mine, an old Sherwood cassette Knobber that I cut the center bar out of an OEM bezel to fit. I have another unmolested bezel to use with the stocker if I ever get it working....The stock knobs even fit!
EDIT>>> My Iphone lost its email icon and I cant send pics but I just milled out the center of an old bezel to fit the small OD of the Sherwood cassette deck and used the stock knobs. Would look very nice if the cassette player itself was silver.....