With all of the recent comments regarding the ability (or lack of) to select a specific song from Slacker via voice command, I have a separate but related question. Does voice command work with songs stored on a USB drive or iPhone? And if I request a song, is the car able to pick from multiple sources (i.e., if the song is stored locally, then play that version)? It is much more likely that I will have a higher quality version of the song on a USB drive versus what can be streamed from Slacker. But if I don't have the song on a USB drive, then go ahead and find the best match possible via Slacker. That would be an awesome feature, in my opinion.