1989 Chevy Radio-No Signal

[59rollingiron]

Today I pulled the stock radio head unit out of my '89 Chevy, and one of my buddies gave me the head unit out of their service truck, an '89 Chevy Cheyenne (Mine's a Silverado). Everything seemed to work, when I got everything plugged in but the tape and equalizer. However, I get no signal to the radio. Scan does nothing. Another friend told me that the internals of the radios that don't fry themselves tend to mess up the antenna jacks. Is this true, or could bending on the old antenna wire and jack botch up the wire? Should I keep looking for more head units? Would rather keep OEM-style, due to memories involved.

[lha1992]

Did you remember to hook the antenna wire back up to the brain which sits under the dash behing the ash tray?

[59rollingiron]

Yes, that little brain/head unit is the part I had to replace. I'm just wondering if that little brain/head unit managed to fry it's jack, and I need to keep looking, or if I can get lucky and just have to pull the antenna out (With my butter fingers, I may have broken the antenna ). I'm rather hoping the latter, though I don't have a clue in the world how to pull that wire!

Edit: To clear up what I said earlier, the sound works, because I can hear static over the radio, and it can attempt to tune to the station. However, scan nor seek find any stations, FM/FM Station/AM, and I cannot tune to any frequency. The clock works great, and the preset functions work well.