Install XM Radio in place of Sirius?

[Rammstein]

Hi all,
I bought an '08 Ram 1500 that came with Sirius. I don't know that I'm thrilled with Sirius so far, and I have a subscription to XM still from my old car (and a separate receiver). Anyone know of a way I can hook up the XM receiver to the current built-in Sirius antenna, or are they totally incompatible? If anyone knows or can point me to a place to find out, it would be much appreciated! Thanks!

-Scott P.

[rdsetgo]

Just wait a little bit longer since it is now Sirius XM... Call the company and ask about when the new service is starting.