If you are adding your ATC to your system, you will get wiring with it. The white wire in this bunch is not used. Instead you need to use the white wire that was previously installed from the factory. It is tucked in somewhere and it has black tape on it. NOT the white wire with the rubber cap that came with the ATC wiring bunch. I was totally confused on this and just wanted to put that out there for others that did not comprehend what they were saying in the manual.
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