WIW what's it worth ? model 385 am fm radio 1967 valiant barracuda
I've bought stuff from op before, no issues, good stuff. $5-10 is an insult for an am/fm working or not. You paid $100 for yours, how long ago? Look at the listing's here for am/fm. Show me one for $5-10.
If it was untested, I wouldn't want to pay much. That 5-$10 would sound good to me. I paid $100 for the AM/FM in my Swinger. It works but not perfect. $250 is out of the ball park for one that is untested IMO