Hi this problem happened to me before and restarting also seemed to fix it but now it's getting worst...

Sometime I start the car and the display works fine, but no sound I can only hear a little base in the background but I have to listen carefully. It does that with the both the cd and the radio. Sometimes it works fine and for no reason stops working. I did notice that hitting a bump sometimes gets it back or makes it stop working.

I would like to check if removing and re-installing the radio would fix it but I need to find the little key to remove stereo which I don't have yet. Think this will fix it?

As anyone experience that? did you manage to fix it?