1982 Monte Carlo Radio Trim?

[G-boz]

86-88 is the double din style.
78-85 is the knob style.

I have both

 

[565bbchevy]

I think the older knob style might be a better option if you are using a single din aftermarket radio with the factory late model bezel you need an adapter to downsize the hole to single din versus cutting a hole the correct size in the knob style.