I really like Clarion and have been itching to get one for a while but it seems something always comes up. Anyway, Clarion seems to be Sirius ready only. Does this mean I can't have a XM tuner controlled by the Clarion head unit? If so, that sucks. It seems somewhat backwards for the manufacturers to choose one versus the other. Make it go either way! What about the portable tuners for auto, car, etc. And not the gay ones that broadcast to FM or play thru tape deck or something. I mean a direct input. How do they sound? No loss of sound, right?