So I don't have the Sirius subscription, but it seems I still have access to the weather and such, right? And if what yurURyour you're saying is right, then I still have some of the Sirius functionality?
There is a place in the infosystem to look at the subscriptions stuff that comes from Sirus, don't remember which. I have noticed mine shows traffic status ever once and a while without a subscription but a few days later it is gone...
To verify that it comes from Nav, pop the SD card out before starting the car and drive through a known light or speed camera. If it doesn’t sound off like previously, then you know from whence it comes.
Hmmm, now that I think of it, I almost never get those alerts, like maybe once a month. But what is odd is that one day I will get it at the same intersection where I have never got the alert before - and that's at an intersection I am at every day.