I just gave my $51+ to hybrid mobile. I figured WTF! I'm $600 under budget on this project and I've bought every piece of hardware I wanted and then some!
But here's what I did. I went to another computer and downloade hybrid mobile's XM software. It couldn't find the XM Direct. The computer would just sit there with an eternal blinking cursor. I don't know what I did wrong with my cable - if anything. I could have a bad XM Direct... but I doubt it.
Will update this thread some time next week.