Shortwave receiver that will integrate with satellite-radio interface on a car-stereo?

Does a shortwave receiver exist that will integrate with the satellite-radio interface on a car-stereo?

Ideally, I'd like to plug it in to a JVC radio, along with my ipod -- and hide the whole thing under the dashboard, since I like the looks of the inside of my car as-is. But, I've Googled around and haven't found anything.

Thanks,
-Luke
.