Am having to replace a broken kill switch on a New 22' SV - guess it's a known issue these things break. Received a new one from Bennington and it has 4 connection points (blade style). The original version had a direct wire input that appears to be molded the switch (no visible connectors). No instructions came with the switch - anyone know which 2 of the 4 connection points I'm to use? Thx!