I pulled out my radio to remove a disc that had been caught and after i plugged it all back in, the radio screen was just blank. I still get the startup screen with the image of the car and the Dolby Digital PLIII ect, but after that its just blank. I can still go into the settings menu and change the sound input (aux, usb, cd). The volume wheel and number pad also do not work. Does anyone know a solution to this? I have checked and made sure all the wires are plugged in correctly, as well as checking the fibre optic cable has a flashing red light. Thanks.