Okay, just got my RFX6500 yesterday. Didn't really have time to mess with it, but did notice that the extender wasn't controlling my XM tuner. I really need the RF solely for the receiver and the XM tuner. These two sources are what I control when I'm not in the home theater. The receiver is a three zone denon, so RF is a nice touch. I haven't tried the individual blasters yet. Anyone have any experience with this tuner-RF extender combination. Thanks in advance.