the only way to know for sure is too plug in a tester antenna, this is how we diagnose antenna problems, and gps antenna problems, is by installing a tester antenna in place of each component, it likes the game of clue you figure out what you know its not, which shows you what is wrong. bad reception?
I have good FM reception, but get zero AM stations.
Are you typing
sounds more like the radio itself, if good fm and no am.
yes i was typing and it froze up
you still there?