No crank no start

Hey guys, I started having a no crank no start issue, originally thought it was the clutch switch, got a new one when I found it was still being pushed in and replaced, still nothing. I ended up digging a bit deeper and found some wiring leading to the starter button directly down to the starter signal wire, which the original wire was broken. Is the starter signal wire part of the whole engine harness or is it something I can replace and put back to OEM?