aftermarket radio install? kits available?

Search FABO. I know there is at least one later post than above, since I contributed.

Search "HD Tuner" on ebay. I got ~$15 each for my two 60's cars. An after-market add-on when HD first came out ~10 yrs ago. Originally >$100, but cheap surplus now. Several models, but all have a thin faceplace w/ cord ~12"L that goes to a small base unit. You must figure a way to mount it to your dash (maybe Velcro), but FABO guys are resourceful. Some have an above-dash holder, like a GPS, but that is for newbies.

Output is 2 RCA plugs. You need a stereo amp to drive the speakers. Most would bury that, but if you want it visible (so you can turn it off), you might use a thin equalizer/amp. I haven't installed mine yet, so don't quote/blame me. Just an idea.