rr diff lock

2010 Toyota FJ Cruiser with Active Traction-Control system (A-TRAC), rear locking differential (RR Diff Lock), multi-information display (compass, inclinometer and temperature gauge), back up camera, tow package, factory sliders, factory roof rack, factory fog lights, NEW factory TRD wheels and...

Hi, i'm new here, so not sure if i'm doing this right, but i noticed that most of my switch blanks have wiring harnesses connected to the and i was wondering if this is anything like adding an a trac witch to an fj with the rr diff lock. Mine is a 2012 used so, even though this would probably...