I have the fiber optic kill switch. It is a few weeks old, working on a DA50. It has failed I think. The green LED can be switched on by the transmitter and seems to work fine. The other end that is connected to the ignition is the problem I think. The red LED stays on even when I turn the green LED off by the transmitter. It doesnt allow the ignition to work. I have removed the switch from the ignition ant it starts fine. Any ideas? I have changed the fiber optic cable already.