The 2013 ram radios can't be turned off by design
it is no longer just a radio, but also a computer as well
when Chrysler wants to update something, they transmit it wirelessly to your Ram, if everything works as planned, you would not notice any changes.
If for some reason the update is blocked, it keeps trying to resend the unit the information & you get in your vehicle in the morning & have a dead battery
sort of like your cell phone trying to look for a signal in a dead zone, it drains the battery quickly
those that experience that crackling or popping noises while playing your radio in certain modes
some members have discovered that the antenna has been the problem in more then a couple of instances