I have an existing kill switch. Can I install the MOB+? FELL Marine December 19, 2017 13:32 Updated Follow Yes. MOB+ is easily installed using wires from your existing kill switch. Please see installation guide for instructions. Related articles Evinrude engine not able to stop engine after MOB+ installed Do I have to install the xHUB in a fully visible position e.g. in the front of the console?