I'm working on building the stock look radio from scratch that will control a modern radio via the remote jack on the back of it, as soon as I get my truck back together I'll hopefully get back on that project, it's for the 47-53 style radio though.
Another option if you've got a good working stock AM tuner is to hit the swap meets and look for an Add on FM tuner, I remember seeing them in various vehicles in the late 70's early 80's and have seen a few at swap meets since, they plugged inline to the AM antenna and transmitted the FM audio on an AM frequency that you could tune in.
MONGO
