[sauceonside]

I have a bunch of electronics powered from either the rear seat 12V or the trunk 12V. Dashcam, multiple iphone charging, radar, etc. I know this isn't the ideal hardwire many of you use but I'm content with how I've done it.

I've started noticing a new phenomenon where the devices powered by the rear trunk outlet sometimes aren't powered when the car starts. At exactly 15 minutes of run time, these devices turn on at once, as if that outlet just turned on. The connection is good by the way and the timing is consistent. It doesn't happen every time though, sometimes they all power up with no issue.

I'm assuming there is some sort of fault being detected where too much power is being drawn and the system goes into some sort of delay to prevent a short, but these are also very low power draws. Has anyone experienced this and can confirm, or troubleshoot?