alt Hacker NewsHead units aren’t always-on. Typically they go into a low power standby 2-5 minutes after ignition / accessory mode turns off, and go completely power-off 30-ish minutes later.
Otherwise any car sitting unused for a week or two would have a dead battery.
Replies
olyjohn • today at 2:56 PM
They are always wired to battery power though. The point is that it could look powered off, and still be running a proxy.
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kotaKat • today at 3:32 PM
Some of these Android units also double as DVRs and dashcam recorders (parking mode!) as well so may be hooked onto the normal +12v rail.
I learned that not all electronics goes into low power mode even when designed to run off a car battery, from using a cheap Bluetooth OBDII dongle.