I have 2012 Toyota Camry the audio system w9rk but no sound

If your Camry has the factory radio, it might be either the head unit (in the dash) or a separate amplifier module (mounted somewhere else) that has failed. A competent car audio shop can diagnose the problem. If the factory amp module is bad, there are kits specifically to replace the amp and retain your factory head unit if that is what you'd prefer. A Toyota dealer can also help troubleshoot but the dealer will be much more expensive than taking the car to a car audio shop. There are aftermarket solutions that allow you to keep as much or as little of the factory equipment as you want.