I have the same problem on Volvo C70 2008 premium sound
One day I turned on the car and radio, cd, aux, satellite was not working..... CD is not even loading cds ( nothing)
When you press the radio power button the picture of the C70 comes up but then nothing. If I press FM button nothing happens... IF I press the CD/Sirius/ aux buttons I can navigate to these menus but whatever I select, it does nothing....
In the car configuration , in the menu I used to have a equalizer menu but now this menu has disappear not showing anymore.
I bought on Ebay a new amplifier, the Info entertainment display and the CD player. I replaced all of them and nothing..... it does not work
Any help what else can I look at? I am desperate looking for more ideas on what to look at
I do not need to mention that I have checked fuses both inside the car and the engine
Many Many Thanks
Note: Sorry I am not sure if I posted the question in the right forum since this is for s40
..... I apologize if this is the case. I am going to post in the right forum too. I apologize