Factory radio

[branded]

I have a 1973 Charger SE and don't know why the radio won't work.  The radio was working when I got it but when I put it in the car, you can hear it come on, but no stations.  I put in a new antenna and speaker.  Could it be a grounding issue and if so, how can I troubleshoot the problem?  Any help would be appreciated.  I also have the same problem on my 1974 Dart Swinger.

Thanks!

[b5blue]

https://www.bcae1.com/