[HummerMann]

Onstar can turn on and track your car at any time and almost all insurance companies pay part or most of this "one-time fee" if your car is stolen. The problem remains that cracking off the antenna makes it more difficult to track, placing a coffee can over the antenna makes it almost impossible to track, and disconnecting the battery makes it impossible to track. Professional thieves know this and LoJack and other systems have an internal battery. We have LoJack on some of our field equipment and have been very satisfied with recovery resulting from it.