Hello. I have a 1994 Pontiac Sunbird SE, and my FM radio has poor reception. on 1994 Pontiac Sunbird

When I put the AM on, it works fine. I checked the fuses, and they are ok. There is a cassette player in the car. I replaced just the antenna, but it still won't recieve a strong signal. The cigarette lighter fuse is broken. What could be the problem? Solution?

Asked by for the 1994 Pontiac Sunbird
The radios shot ,need a new 1. ,update to CDs.