2002 Civic EX AM Radio not working
 

For some reason my AM radio no longer works. It puts out a loud tone throughout the band spectrum. FM and CD work fine. Could it be a fuse? Maybe something disconnected? The car was in the shop last Wednesday (June 18) and they worked on the rear end tire arms, put 4 new tires on, an oil change, and checked my A/C unit. It was working fine beforehand. Please advise.
Thanks,
Joe

There is a remote chance the antenna is just loose enough to create that issue but it's like a .00000001% chance. Sounds like the radio is bad. Were it a fuse, the whole thing wouldn't work. If you listen to AM, it's time for a new stereo.