Old Delco Radios
I once had a 1961 Corvair and it came to me with a crappy SEARS radio that was useless ~I headed off to ' The Corvair Doctor ' and asked him , he said
" no gots ! " ~ I walked the line of dead Corvairs and spotted one gutted hulk with the correct radio (each push button had a letter on it so it read C H E V Y) , he said " oh that ~ it's no good , the windshield's been gone for 5 years and it's rained through the dashboard so that radio's junk....."
I bought it and polished the chrome up , cleaned the spiders out and it was still playing perfectly when I later sold the car....
You can always put a CD player in the glovebox or under the seat but the original radio is extremely hard to find these days .