2015 yaris, rear view camera

[yarisbug]

Hate to revive an old thread, but i'm doing the same thing here with the exact same wiring harness and am a bit confused as to where/what i tap into to provide power to the camera; would I tap into the reverse light and wire that to the camera's power cable, or actually run a power wire from the camera itself all the way to the front and splice that into the red wire on the harness?

Any help would be greatly appreciated.