I don't know what you mean by streaming. It operates just like a normal radio, just beamed to you by satellite and with their channels.
Ah, my mistake. Yes, that should be included.What I meant was that Sirius offers a separate package to stream all their channels over the internet in addition to having their satellite radio services. The Streaming service is available as a separate product billed by the month, or it is included as part of their "deluxe" (I don't know the real name for their upper tier satellite subscription) satellite service. It is not included in the lower (cheaper) subscription packages. With most car manufacturers, the free trial is of the top level service, so you get the streaming service (for your home or office) during the trial too if you want to use it. When you start paying, after the trial, you can choose the package level you want to pay for.