Use my Dish for Sirius Antenna?

[mpsfll]

I've heard of a device that would allow me to receive my Sirius Antenna feed from my Directv Dish, and at the point the coax comes out of the wall in the living room, a splitter unit could separate the signal, and I'd connect a cable from the splitter to the Sirius Sportster Home Unit.

Anyone out there using it, heard of it, or have any good or bad comments about it?

Thanks!

Mike