2021 Laramie 3rd brake light wiring

[Challa]

Picked up a new 2021 Laramie today--I plan to move my existing cap from my 2016 Ram over to the new truck, and thought I'd tackle the wiring myself. Does anyone know if:
1. the 5th gen has the purple/white wire pigtail from the brake harness to connect the 3rd brake light? if so, can you be specific where to look. there's nothing obvious to me on initial inspection.
2. anyone have a wiring schematic for the tailgate harness? my existing truck lock/unlock is tied into this harness; lock appears to go to Dk Green/Tan and unlock goes to Lime/Tan. would be nice to get it right the first time...
Any help would be much appreciated.

Edit by moderator: Spam links removed, left thread for good information by Richard320.

 

[Richard320]

Q1: Yes. This thread discusses it. The earlier ones had a pin, the later ones nicely have a pigtail https://5thgenrams.com/community/threads/chmsl-wire-tap-for-topper.3557/

Q2: Read all the way to the end. https://5thgenrams.com/community/threads/help-needed-with-camper-shell-power-lock-wiring.17398/