Photo request: '68 rear speaker fader on rally dash

Thank you, but I'm pretty sure I've nailed down the correct parts I need, just finding a nice knob will about do it.

This is from the 1968 Accessories catalog, thanks to Barry Washington and Hamtramck Historical. Here you can see 2864331 is the rear speaker installation for a Barracuda.
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This is from the 1968 Parts Manual listing the parts in the kit, with the part number for many of them, including the knob and bezel.
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This picture shows some parts I've collected along the way.
Top row, left to right: 1) plastic fader knob for 1971-74 B-Bodies. 2) Knob uncertain of application but has half-moon hole and set screw that fits the fader switch. It's larger than the next two, so not quite right, but I'll probably use it for now. 3) A knob that looks just like one on the headlight and wiper knobs knob on a '68 Barracuda. Doesn't fit the fader switch, but the shaft on the switch could be altered to fit. 4) '68 Barracuda cigar lighter knob, the same diameter and appearance as #3.
Bottom row: 1) Plastic bezel for 1971-74 B-Bodies, and probably many others. 2) Chrome metal bezel, unsure of application, but probably many. 3) Bezel 2426942, which is listed as the correct one in the parts book, and is the same as the one I posted in Post #5. I got it from Jack Koziol at Central Jersey Motor Parts. Great guy to deal with.
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The owner's manual shows the fader switch to be mounted next to the lighter, but as shown above, it seemed to go wherever was convenient for the installer. This picture shows the knob to be the same as the lights, wipers, and lighter. That gives me more confidence that the knob in post #5 is correct. Just to find one! I'll put in an ad on the forums soon. I suppose finding the convertible top switch for a '68 Barracuda might be helpful. That may be my next help request.
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My '68 Road Runner didn't have many options, but it did have a factory rear speaker. The bezel was in the dash and was like this, except no defogger.
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And more pictures of faders and mounting I found on the Googlewebs. The knob on my Road Runner was like the one on the far right in the first picture and the one in the second picture.
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Just like my '68 Road Runner dash.
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Thanks to all who have taken the time to read through this. If you have a spare knob PN 2580253, please sell it to me! :thumbsup: