Radios

Pretty sure Dana is right. 67s were all chrome all the time. Then the Feds stepped in with regulations that discouraged bling that might blind the driver. It was never a trim level thing.
I just purchased a radio pulled from a 71 Duster.. and it has the chrome buttons. And according to the post halifaxhops shared, that's the correct one. I have a 72 Demon and now I'm thinking I may have bought the wrong one not realizing the 72's might have the black buttons. Not a huge deal because mines not ever going to be pointed, but I did buy it trying for correct factory look.