Reconnecting Center Brake Light after removing sports bar

[McCoys]

I bought a 2021 Silverado 1500 Trail Boss that had a dealer installed Sports Bar that had a center brake light integrated in the accessory.  I removed the sports bar.  I found instructions that I followed perfectly up until the part that re-connects the brake light wiring in the Delphi Connector under the passenger floor board area.  Remember, the instructions I am using are for the installation of the sports bar - I am reversing the process.  The instructions identify pin #39 to be the pin used for the center brake light on the truck.  however, there is a wire already using pin #39.  Remember, I'm reversing the installation so that #39 should be empty if the installation called for this pin to be used as the original factory integrated center brake light.  

 

The instructions do not identify a wire by color but the wire that is currently not connected is purple. (see pictures)  I am only assuming this was the original wire that was connected to one of the pins (not #39) but I have no idea where it should now go. (if in fact it is the correct wire for the brake light)

 

these are the instructions that I followed successfully up until #13 on about page 12/13 (the pages are not numbered).  

https://uploads.tapatalk-cdn.com/files-27/1597173956_84571746.pdf

 

any help is greatly appreciated.  

 

 

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