Here is one on EBay.
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Here is one from a Hellcat Challenger.
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For those that don't have a late model Challenger. They look like this in a Challenger Dash.
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My surround for comparison. Obviously the Bezel I had to work with has some limitations for the shape.
Also having never done this, it was a learn as I go and all done just by eyeballing it.
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I used disposable Cake decorating frosting bags to mix the J-B Weld in, and then extrude the mixture out through a small hole cut in the tip of the bag.
Building the layers up like a human 3D printer. :)