When I start my car, most of the time the empeg boots up and then immediately goes into blinking LED mode. However, sometimes it does not. In addition, when it does go into blinking LED mode, pulling it out and reinserting it lets it boot up and start playing normally, which it does not do if you specifically put it in blinking LED mode.

My theory is that the empeg is not receiving enough voltage at startup, but I don't have any good way to test that. Does the kernel have any way to read the current voltage? Does it have any way to do things periodically? If so, it'd be great if there was some way to keep a log of the voltage, maybe just in memory, that I could look at to at least confirm my suspicions.