Cory
San Antonio,#2Consumer Suggestion
Mon, July 21, 2008
I've seen that before. Had that problem a while back. Some radios are programmed with some type of security code where if they are removed from the vehicle, they will not function unless a correct security code is entered. I suspect they disconnected the battery when they were working on your alternator which is almost like removing the radio, cause the power supply is disconnected. Check with ford, not the dealer or another dealer, someone who knows what they're doing. Was this OME or aftermarket? I think on mine, they just turned the radio to the on position, punched in the code and it functioned