Since I drive a manual, I found the center dash board switches above the ac/heater controls in a junkyard and replaced the original and used the ECT button to make the same type of switch but it turns on all the accessories, without the key in the ignition. It's nice to turn on the radio or charge something for a few minutes, but it will drain the battery if forgotten.



I suggest if you want to prevent battery depletion from forgetting manual override switches like these ones ON, use a small circuit board that breaks the circuit once the voltage drops below a preset one, that you can set yourself with a small potentiometer on the board. They are available on ebay and are a few bucks and they themselves use very little current, like an alarm LED.
https://www.ebay.com/sch/i.html?_fro...utoff&_sacat=0

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