For the interior lights you could turn on “police lighting” in AlfaOBD. It will let you turn the dimmer dial all the way down and shut off all interior lights, but it will also disable the rear power locks and the tailgate button.
Not sure I would. I tried on my truck and had cascade failures of all kinds of stuff - running boards, locks, tailgate, etc. (rear windows as I recall).
I'll try that tonight, would it also kill the gauge cluster? When wearing night vision even minor lighting will blow your nods out so you can't see anything, which can be rough while driving. If I could kill the gauge cluster that would alleviate the majority of my issue.
Let us know how that worked out for you.
It should. This is theoretical btw. I've not tried it on an HD. I know people have done it on Chargers and on 1500s though.