hello scotty . i have a 2016  audi sq5  3.0 . it .supposed to have a factory harness under the dash . to install a brake controller . i have no yet verify  it . but i did saw some videos n pictures . so i guest is there . now. this is not the problem, if the vehicle has a factory harness ,. do that means it has to have a place to plug in the 7 pin connector on the back of the car .( my guest ) but i can't .find a wiring kit  for  this particular vehicle .or any video info about it. and the forums are taking about if you install a universal harness it will set up some codes . what i reeally  need is a WIRING DIAGRAM  lol i hope you can help if you know any kid of kid that will work whit out splicing cables give me a heads up thanks in advance .