I just had some minor repairs done to the car. New tires and such nothing major. When I got back in I noticed the radio wasn't working. The navigation works but just the radio is not. This has happened before when I jumped my car but a code notification popped up and I entered the code and the radio started working. How do I get the code notification to pop up??

 

Press the power button on the radio

 

By pushing the round Volume button in .