2007 GMC sierra classic body style using EVO-ALL?

Question

I am wondering wich year i should select for aquiring a connection/installation guide for a 2007 GMC sierra classic body style. Half way through 2007 was the model/body style change for this vehicle. When i am selecting the year it will give me options for 2003-2006 or 2007-2013. I am assuming i will go with the 2003-2006 option as this vehicle is the classic body style and would consist of the 2003-2006 wiring systems.