Backup camera and Entune misfunction? HELP! (2014 Tacoma)

Hi gang!

I've tried a couple of different cameras in my '14 Taco, and neither of them did anything -- it's as it wasn't plugged in. I just googled how to get into the Entune diagnostics (I have the most basic of the basic), and if I'm reading this right, REV (I assume is reverse) and TAIL (tail light?) are both OFF even when I switch into reverse. The PKB switches on and off when I do the parking brake thing.

I'm guessing my backup camera isn't working when I move it into reverse because of this (I heard it should magically come on when you switch into reverse). What do you think? I don't want to disassemble things unless I need to, and I wouldn't even know WHAT to look for if I took out the entune and peeked around the back. Well, I suppose I'd be looking for something unplugged, which would be an obvious answer... but if it was only loose, I could be yelling and wiggling things for hours, and my patience is pretty worn nowadays.

Thanks for any ideas friends!

PS -- My screen is miscalibrated and the "Touch switch check" proves it... does anyone know how to recalibrate it? Or is it just a "yeah, here's confirmation it's off but there's nothing you can do about it"?

Thanks again!

 

Oh neat, I found this video which basically has the guy pointing at the particular plug saying "this is the backup camera!" So I'm going to take a look. Anyone have ideas about the calibration? https://www.youtube.com/watch?v=cQKfolm3FqM

 

Okay, I pried her open (and lost a screw, sh**) -- but you know what? There's no harness plug-in for the camera! And it's not tucked in anywhere either! Oy.