I connected the red wire from the other end of the video cable (top image) to the wire at the headunit labeled "Reverse". I connected the black wire from the power cable (middle image) to a tap connector attached to the ground conductor for the car's reverse lamp. I connected the red wire from the power cable (middle image) to the red wire from the video cable (top image) to a tap connector attached to the 12v conductor for the car's reverse lamp. The splice I repaired was in the video cable (top image). I'm certain this is a familiar mess of wires to many viewing this post. Here's the whole shebang, all laid out prior to installation. The headunit won't automatically display rear camera video when the car is shifted into reverse regardless of trunk lid position however, just as before I made my repair, the headunit displays rear camera video when the "CAM" button to manually toggled while the car is in reverse! I'm stumped. My careful repair promptly made the problem worse. I delicately re-soldered each splice, wrapped each splice in heat shrink tubing (HST), wrapped the bundle in HST, then put the repair where it would never again be affected by trunk lid movement. The video cable conceals three individual miniscule conductors. I discovered a broken solder splice within the black video cable at a flex point under the trunk lid. This headunit has a "CAM" button to manually toggle display of the rear camera video when the car is in reverse, but video displays on the screen regardless of trunk lid position! When the trunk lid is closed, the headunit display goes black iow, rear camera video cuts in and out when the trunk lid is moved up and down. The Kenwood headunit automatically displays rear camera video when the car is shifted into reverse only when the trunk lid is open. The thing was presented to me as functional-with-a-caveat, and just one day prior everything was working as expected. I'm t'shooting a Chinaseum-brand $30 license plate mounted rear camera.
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