I put a new receiver in my 2003 f150 and wanted to put my stock radio in my wife's 2003 grand marquis. does anyone know if this will fit? thanks.

 

Probably not. You would be better off selling it as a working radio and buying a new one. Check out Crutchfield.com to see what you need to install a radio in the car. If you you want you could just try to see if it fits. Just take the stock radio out and try to put the f150 radio in.