My Land Rover antitheft device on fritz. Key wont turn. I can pull fuse 18 and put back in and get one start as system resets. I was thinking of a way to automatically do this by connecting some relay from the car lighting fuse circuit to fuse 18 that closes fuse 18 circuit when lights go on and opens it when lights go off. Know of a DC relay that would do that? I could just hook up a toggle switch to fuse 18 but was looking for something cleaner and automatic.