There is a listing of model numbers in the Tech Section for radios. I believe that the radio for the 46 Truck mounted on the bottom of the dash. The "Chevy Radio Man" over on the VCCA site would have the correct information for you and probably has one on the shelf. Incidently, Denny Graham just finished restoring an after market radio which looks alot like the Chevy model. I don't think that he has found a home for it yet.
