No problem Bro...
But I just went through this with my friend Tim's CC install.
I advised him to get his relay from Murph, but he instead bought one off of Ebay.
Looked right, numbered right... Worked exactly backward.
Started checking around locally... Everywhere. They all sold a N/O relay. When energized, it would close... Azz backwards.
Ordered the one from Murph that is the part number you list in your tutorial. Unenergized, it's closed. Energized it opens.
They look the same, but work the opposite.
That's just been my experience recently.
Let me also say, I never even thought about that until this happened! It delayed us 3 days from finishing his install, but thanks to Murph's fast response (as always!) we got it going.
With that said, I'll end with this... I never want to post anything that would mislead someone.
Not my intention...ever. But after 8 of these installs now, the Rostra NOT seeing ground has been a reoccurring issue if it doesn't work.
Just thought I'd throw that out there to him, since I ran into that situation recently.
But, I bow to your superior intellect, sir! When it comes to the Rostra, you be da man!