how do i fix my car radio and cd player,i drive a 307 Peugeot?

My car radio displays but it can not play,it only shows CD,DVD eject and those are the only battons that work,no sound at all and this happen when I took to fix the AC system which was off but since that time my music system has been off...
Muyinda, May 2014


link Click here to see other fixes for Peugeot.