I have recently installed an AVIC-D2 in my truck, and a little while later I installed the XM unit. After installing the XM unit and playing around with the different channels for a bit, the following message suddenly appeared on the screen:

 

SCALING DOWN

 

What does this mean? I looked through the manuals, but didn't find mention of this anywhere. Is it related to XM system, or perhaps the GPS system? It would seem that this message would refer to something to do with the GPS system, perhaps when reception is bad. However, at the time the message appeared I was looking at the XM screen, so I can only assume it's an XM-related message. At the time, I was also not driving, just sitting parked. Can anyone help me out here?

Thanks!

-joe