My new 9000CSE has an immobiliser, and came with only one key fob. The fob is a pear-shaped piece of flat grey plastic with what looks like a hearing aid battery glued to it. It says "Dallas" on it. Although a little temperamental, it has always worked so far, but I am worried it will eventually pack up. Any advice on how I might fit a bypass switch, or disable it if it does eventually fail, or source a second key fob would be appreciated.