Aux switches

[1500silveradocustom]

I have a 2018 Silverado custom with the cargo light and traction control switches under the radio, I want to put in the gm part that has both of those plus 4 auxiliary switches. How do I know If i have all of the needed wiring? I have the empty pins in the junction block by the brake pedal.

 

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[TX LIMO]

I have a 2018 Silverado custom with the cargo light and traction control switches under the radio, I want to put in the gm part that has both of those plus 4 auxiliary switches. How do I know If i have all of the needed wiring? I have the empty pins in the junction block by the brake pedal.
 
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Check out this forum post. I think there are a few part numbers sprinkled through it. Hope this helps.
https://www.gm-trucks.com/forums/topic/168371-aux-switch-install/


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