What wires need to be connected to 20pin?

Question

I have a 2013 Standard Key Ford Fusion. I bout the Evo-all and T-Harness but am kind of confused. I know that I need to wire the yellow, light blue, light blue/black wires together. But what else do I need if all I am using this system for is remote start? Do I need to splice into the OBD-2 port and if so why?

Answer 1

CAN wires required as it offers a couple of statues (like lock-unlock detection).