Vehicle Speed Pulse on 2016 Suburban

[jpk]

Does anyone know where I can tap the VSS on a 2016 suburban?

[jpk]

I think I've found my answer:

 

http://www.gm-trucks.com/forums/topic/155775-2014-rap-retained-accessory-power/page-2?do=findComment&comment=1446980

 

The "upfitter guide" linked in that post has a complete breakdown of the connectons. Looks like I'll be able to get the +12volt , ground and vss signal I need for my rally odometer there...