The first week after I bought my car, I had my cell phone connected to the auxiliary input as well as to a charger, when the stereo made a strange noise; it was a kind of whistle, after which the stereo turned off and immediately started working again. This weekend, the same failure appeared, but this time with an iPod connected in the USB port. The difference was that, after the whistle, the stereo did not start working until I turned the engine off and started it again. On Sunday, I washed my car with the iPod connected in the USB port one more time. Once I finished, I removed the keys. Later, I started the engine and the stereo did not turn on. Today, the car is in the agency and I still do not know the cause of the problem.