I just bought a backup camera/lcd (Auto-Vox M6), and would like to power it from the dome light. Only problem is I always see power on the harness, I don't see any pin that gets 12V only when the car's ignition is on.

I downloaded the 'IQ Repair Manual.zip' and 'PT922-74110inst.pdf' but I'm having trouble reading it... however it's probably similar to the information that's here:

https://www.scionlife.com/forums/sci...d-wire-220632/
https://www.scionlife.com/forums/sci...ng-help-48057/
Tapping into the Dome light wiring down below, side panel maybe, where? (images seem to have been removed)

anyone know where I can tap power from the dome light circuit/harness that's active only when the ignition is on? I see 12V all the time, even when the car is off