Laramie Longhorn 3500 4x4 for one month and my radio will not turn off. I can mute it, but after turning off the vehicle and restarting at a later time the radio comes back on. I called Customer Care and they told me that the radio stays on until the vehicle is shut down and will come on automatically upon restart. What they told me was that I would need to turn the volume down to where I couldn't hear it and when I restarted the vehicle, the system would be on, but I wouldn't hear it until I turned the volume up. What a way to design the system.