21+ Tahoe where to tap for step lights?

[DwDrummer]

I want to add some LED lights under the steps on my Tahoe and was wondering if anybody knew where I could tap in the BCM wires under the driver's side dash so they would come on/off when the door opened/closed? I did this on my 24 Sierra Denali but know the wiring is more than likely completely different. Thanks!

 

[WalleyeMikeIII]

Perhaps figure out where the illuminated sill plates are wired from...maybe even locate that accessory wiring harness...that is probably the closest to on/off w/ the door.

 

[DwDrummer]

I seen this on Amp research directions for their electric steps, anybody know exactly how to wire each light based off this picture?