so i bought a 2013 g37x but unfortunately the previous owner had someone put a remote start and completely destroyed the dash harness. so i got one from the junk yard. my question is do i have to take the new harness to the dealership to get it programmed. im new to cars electronics so it might sound like a newby question. any help is appreciated.

 

No lol... a harness is just a bunch of wiring. No need to program it.