Nope. No one does.
Radios were options, so it would have to be ordered first to be deleted which would be silly, so radio delete is a bit of a mis-nomer.
The cars simply came with no radio.
Jackie has one.
Cars with no radio specified came with a block off plate in the dash & no antenna hole in the fender (or rear quarter for cars like AARs & T/As)
Later on, 1975-76 maybe? There was a plug for fenders to fill the antenna hole on cars with no radio.