Tach not working so I’m sending it out to get it fixed. My question is (see pic) the back of the Faria tach has these leads with an extender lead attached. Is his extra lead factory cause the other end was not attached to anything. My pink resistance wire goes from switch to fuse panel then becomes red w/yellow strip to +coil. Not like the 67-68s where the pink and red wire connect directly to tach. I’m unfamiliar with the 69s so if someone has a pic or can answer to where it goes (I can’t find the other lead) it would most helpful.