I'm the proud owner of a Delphi SkyFi XM tuner. Well....actually it's a demo unit since my employer and i are dealers. But in any case, it's great. Soon, I'm going to get the Antenna Specialists' 12-inch glass-mount antenna to try and reach above the trees a little better around the woods of Vermont. I'm also trying to find out who sells PAC products so I can get an interface to insert the line outputs of the XM into the CD changer input. (I hate tape adaptors.) So far only PAC has an adaptor that adds line-level RCA inputs and retains the use of the factory CD changer. And it's only been out a month or two so lots of webstores haven't updated their sites yet. As far as channels go, I was listening to Boneyard (42 i think) on the 4th of July and they were playing 420 songs of Metallica. The 4 hours I was listening to it, I heard all of ONE commercial!
RFR, does your roof rack ever interfere with satellite reception? It looks like it's almost right in the way.