Radio Question?

[scutler]

I need help! Does anyone know if Ford has any type of security code on their Radio/CD units? I had my Battery off my Explorer for about a month. When I went to reconnect the battery, Radio won't work! All that shows up on my LED Display is," --- "?
The radio is receiving power. Haven't called Ford yet. Any help would be Great!! Steve

 

['92 Sport]

It might be as easy as setting the clock. Or you might have to pull out the radio and check the wiring.