SW tach wiring

[William]

I'm curious as to how the SW "tachometer wiring kit" was configured-these are the dotted lines on the SW schematic. Were the wires loose or was it the same 4 conductor phone cable?

How did Yenko...
-terminate the black ground wire?
-connect the red wire? Was it spliced into the resistor wire or inside the car at the ignition switch?
-connect the white (panel lights) wire? Was it terminated at the fuse box?

Thanks guys