It would be noce to know, maybe it doesn't really know whether it is in use or not and just chooses the 'safe option' (i.e. stay on).

According to the documentation, it shuts itself off after being disconnected for a while. My experimentation seems to bear this out. If I pull the player, then put it back in again soon afterwards, the receiver acts like it had been on the whole time and just keeps working. But if I pull the player and go inside for an hour or so, then bring the player back out again, it seems as though the receiver had shut itself off: Cold boot cycle. Even if I have the receiver on permanent power.

The exception seems to now be:
- With Derrick's non-coldboot-patch, AND
- with the receiver on permanent power, THEN
it seems to boot up quick every time.

I haven't done a lot of testing of all the variables to be sure that's the behavior, but that's what it SEEMS to be for now.