Hello, my name is***** to Justanswer! Give me just a few minutes to look up some specifics, I'm working on this now.
The T2SIR isn't available, but you're not out of luck. There are still dual tuners being made, but are different brands and models, but are otherwise identical to your NuVo. Click here. Yours says Sirius, this one says XM, but they have merged and are now both the same thing, so your satellite radio won't change.