I will try to give you a more sensible reply. If the display unit is above the radio then I can tell you that the tuner module is faulty and will need to be replaced. This is a very common complaint in Peugeot radio/cd --- model PU-2471--- this will be written on the top lid. It is an expensive repair and probably be cheaper to source one from a breakers yard.
Pat --- Car Audio Repairs, August 2011