2017 GMC Sierra 1500 Trigger wires for SOS nERGY siren

kparr5

Member
Sep 15, 2011
153
US/Kansas
I'm about to start a install project on a 2017 GMC Sierra 1500 for a local Sheriff's Dept. Wondering if anyone could offer any guidance for the following trigger wires.

1. Ignition
2. Park kill
3. Horn ring

I'm just looking for wire colors, locations and if they are ground triggered or positive? I'll be using a nERGY SOS remote siren. This will be the first GMC/Chevrolet pickup I have done since 2010. Thanks in advance. Hope this is the right place for this question.
 

kparr5

Member
Sep 15, 2011
153
US/Kansas

Thank you shues.

There is 1,000 plus pages and I'm having trouble finding everything. I'm wanting to pull these trigger wires from under dash. So far I think I have the following.

1. IGN - Purple/Black
2. HORN - Brown/White

I still haven't found anything for park indicator. Anyone else found anything?
 

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