Have a factory installed stereo am fm single disc player. Truck has only 8,000 miles. Recently had 2 in of snow on truck as we left on a trip. The radio display would light up but had no sound on radio or cd player and station read out was inop. Played perfectly day before. Read owner manual and it said something about moisture getting into radio would cause a shutdown. Two days later it worked perfectly. If it was moisture, how in the devil could it get inside the radio. Truck does not leak water anywhere.......