Custom Running Board Lighting Question:

[johnbisme]

So I have a 2021 Lariat with the power-extending running boards. I've added some blue running board lights to light the boards on entering/exiting. Right now, they are wired so that they light whenever the door lights are on... i.e. when the door is open or the truck is locked/unlocked.

However, I'd like them to be illuminated whenever the running boards are extended (for example, approaching the truck when the running boards extend, and to not darken when the doors shut but waiting until the power boards retract).

Has anyone tried something like this and know if there is any circuit I can tap into that receives power when the boards are extended but does not when they retract?

Thanks!

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[johnbisme]

I think I'd be OK getting the lights to tap into whatever is running the puddle lighting on the bottom of the mirror, but haven't been able to find information on what wire colors those are.