I bet your right, it was probably a rebuilt. I turned up the backlighting so I could see the hidden lights that were on the display. I don't see XM =( It wasn't his fault at all. It's my fault that I didn't do further investigation into the 6 disc he was selling. Now to see if I can find one that was TRUE to Grand Prix with the XM built into the band. I wonder if I can try and sell this one. This one is in EXCELLENT Shape. It does look brand new. =)