How does the factory satellite radio setup work with the 07 prius? The toyota website says the radio is pre-wired...how much extra for the receiver and installation?

I'm not sure about the Prius, but the Camry Hybrid is about the same setup, which is XM "ready" When I just casually asked the parts guy when I was buying the car how much it was for XM radio, he laughed. Parts were $499 and labor was $400. I have to believe they dont do many of those installations. I went to Wal-mart and bought a Roady XT.

Mark

Has anyone bought the receiver from PriusXM.com? They offer a receiver that works directly with the in-dash screen (probably the same one dealers have) and it's only $299.