What’s an ESN/RadioID and where can I find it?
Each satellite radio has its very own ESN/RadioID. You’ll need this number to set up your account. There are 2 ways to find your ESN/RadioID. For most radios, the RadioID will be displayed by tuning to channel 0. If it’s not, you can use the “Menu” function of your radio to display it. (Note that the letters I, O, S and F are not used).