Empty FuseBox Terminal

Here is factory schematics. 1st schematic shows DK blue wire and gray wire from tach. Look at 2nd schematic and dk blue wire(7th wire up bottom left) goes to fuse block.
Hope that helps.
So it sounds and looks like my tach is supposed to plug into the "shinny" terminal?

67BarracudawiringA.jpg

67BarracudawiringB.jpg