Please give more details ( electric schema ) about the switch instalation to understand how it works. I want to see which wire cut/enable that switch.Regarding parking mode, I have added a switch to my HK3 which enables me to have exactly what you are wanting. Parking mode is activated in the settings and when the switch is at position ‘1’ the camera functions normally, records normally when driving and when ignition is off it switches to time lapse parking mode. However, with the switch at ‘0’ the camera only records while driving and when the ignition is switched off the camera cuts off too, PM is still activated in the settings.
Thanks !