2011 and the 4hi mod?

[Mighty Hd]

I did the 4hi mod on my 08 and can't remember how to do it for the life of me. I would imagine that the wiring is the same. If memory serves me right I put a diode in the underhood fuse block on a relay??


Any pointers?

 

[sumo]

In a nnbs tahoe? All lights are on in hi beam except fogs