Tre4 OG

So while I’m searching everything I come across says 88’s don’t have a clutch safety switch. Well mine does and it has the lower plug on the clutch pedal too which Frim searching says it’s for cruise control. Here’s my problem. My chassis/dash harness doesn’t have the pig tail for the switch. I’ve searched and searched but I can’t find an answer. How do I wire one in? Is that a thing? Thanx for the help.