Thank you for the detailed response. I wish I could buy you a beverage of your choice

That looks like the move. Thanks!

Wonderful, thank you for the code specs

There is insulation twine crisscrossing the joists to hold up the insulation but this is not what I am referring to.

There is a white wire that is running parallel to the joist. The wire sleeve is an off-white almost the same color as the insulation.