Hi Ed,
I don't have a part number for this radio, I believe it should start with 01 (for 1970 Chevrolet). I have heard the same radio fits Camaro-Chevelle-Nova-Monte Carlo and full size, the third letter could be A, B, F, or X if my info is right. FM mono should be FP. So MAYBE the part number would be 01FFP or 01FFPx for a Camaro radio.
I wish I had better info ??
If you don't mind looking, what is the part number on your radio?
Thanks,
-Sam