Radio Replacement

[Idaho64GMC]

Hey everyone, I apologize if this has been asked and covered before but a quick search of the forum didn't come up with many results for me. I have a 64 GMC pickup that I just got running and driving, It was ordered without the radio but it had a chevrolet radio put in it later on. It is AM only and doesn't work, So I was wondering if there were any inexpensive dual post radios available to put in the dash of these pickups? The posts are wider on these than most that are available that I can find, and I don't really feel like putting $200+ into a radio for a work pickup which is what the retro style radios run. Any help would be appreciated, thanks