Replacement pop-out tuner knob for the factory radio in my 2004 Chevrolet Astro; nearly identical to my volume knob for the same radio, but has slightly different dimensions (most significantly it's a bit longer).
OpenSCAD source code is available on GitHub under oldlaptop/astro-knobs, but consists of nothing more than a set of alternate parameters for the volume knob model. Once again, you are likely to find you need to adjust the stem_id parameter, and may even find that this value should be identical to that used in the volume knob. (My volume knob and tuner knob broke at different times, so my replacements were done with different filament spools, etc.)
Also like the volume knob, I recommend orienting with the front side down and using a brim.
The author remixed this model.
Dimensions slightly altered to fit the tuner knob position.