I have an existing kill switch. Can I install the MOB+? Eirik Hovland October 10, 2022 11:46 Updated Follow Yes. MOB+ is easily installed using wires from your existing kill switch. Please see installation guide for instructions. Related articles How quickly does the engine shut off when I fall into the water with a connected xFOB? Can I or passengers start the engine after I as the driver has fallen into the water? Multiple Engine Install Note to professional/active users I do not have an existing kill switch. Can I install MOB+?