We don't shut down on low voltage; on low voltage we blank the screen (turns the amps off and helps reduce pops if the unit is actually being pulled out of the car without powering off) and save to flash.

The player continues running, and if power hasn't actually gone away, it will re-enable the amps and screen & show the battery icon.

The only time the player actually *reboots* is if the voltage gets so low that the 3.3v PSU drops out and the reset chip (which monitors the 3.3v rail) will then reset the CPU after the PSU becomes stable again.

ISTR this isn't until something like 6v on the mk2. The battery symbol comes up at around 10v.

Hugo