I've got no tuner installed, or any other com device. The only thing that's IR is my locks on my car, but the receiver is on the outside of the car facing the other direction.

Also, yesterday I had a few extra minutes to kill, so I watched the empeg for about 4 minutes and kept notes.

The play icon flash is exactly every 30 seconds, also it seems to keep counting if the song is paused. For example, when I started to keep notes the first flash was at 0:07, then 0:37, then 1:07. Then I hit the left button at 1:12. The next flash was at 0:25, then 0:55, etc.

I'm not sure if this helps at all, but that's what it's doing...