wire question?

[bark]

So I'm still modding this 04 6.0L 4L80e harness following most of lt1swap and I think I'm winning, I have some left over wires yet

a dark blue and a brown in one of the plugs that are close to the fuse box plug


the dark blue goes up by the alternator???? whats it do

and the brown follows up the MAF side of the engine, maybe for ac or the low coolant level

figured I'd ask, so while I'm out searching the parts truck you guys can come up with some answers.

thanks