Chadical, I really appreciate you sharing all the pictures. I finished making the adapter harness cable today. After matching all the wires from the 16 pin adapter (2012) to the 24 pin (2014-2019) I had one brown wire with black stripes left from the 16 pin which I ended up not using -1st...
I have a 2012 limited with in dash backup camera non-JBL. I am trying to splice the exact same harnesses for the back-up camera you used. I found them both @ best buy.
Amazon.com: AXXESS Toyota Back-Up Camera Retain/Add-On 2012-2015 : Electronics
Amazon.com: AXXESS Toyota 2013-2016 Back-Up...