I bought a 2007 DC SR5 from someone and they had the astra 4000rs2w-1 installed. They only had the alarm installed and not the remote start. He gave me the box and it has two harnesses in it. I have never installed an alarm or remote start, so would it be as simple as wiring these to harnesses and plugging them into the alarm module for me to have remote start? Here is a pic of the harnesses.

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