Starter wire under dash?

[Totec]

I have installed a cm900-as autostart on my 2001 Yukon, using a walk through I found on 12volt and a video on yt, but both told me that the thick yellow wire under the dash was for ignition, but I feel that wire was for my airbag because now I have an airbag light on and when I trace that wire down, it goes into a plug closer to the firewall. I was wondering ;does anyone know the correct starter wire under the dash? Also I have a ft elock relay that I have no clue how /where to install. Any advice is super helpful.

 

[S33k3r]

I don't have a specific answer for you, sorry, but you might look for videos on airbag wiring...

 

[Mudsport96]

Only thing i have for you is if i remember correctly, all yellow loomed wiring is SRS. So yeah airbag.

 

[S33k3r]

Maybe this will help?

2001-2002 Gmc Yukon Wiring Diagram