Was there ever a "no radio installed" option?

Cuda Al said
An example, the 67 Valiant was cleaner, not a filled on like this.

From a cursory scan of eBay.
View attachment 1716058426

View attachment 1716058424

I did see that one, but it was the wrong year range. Still, seeing that one made me think maybe the later 70s dashes had something similar.

I'm experienced with molding, casting, and thermoforming, so I *may* get ambitious and see if I can recreate the lower portion of the panel.