So if Ibiquity comes out with a "univeral" box to work with Sat-ready car steros,( http://www.mediaweek.com/mw/news/tvstations/article_display.jsp?vnu_content_id=1001806221 ) where does that leave a guy that has a 2005 Chevy Pickup WITH XM built-in? Is there still a port to hook the HD box up to without modulating it or using something else to get the signal into the factory unit? Hopefully GM has a port that allows other accesories to be connected to the car stereo units that is hidden in-dash on the unit.