When we bought this Crossfire in late 2004, we had a Lowjack system installed. I understand that their unit is connected directly to the car battery and uses a rechargeable lithium battery. When the lithium battery dies completely, the unit will make a continuous drain on the battery. Perhaps this is a candidate for my parasitic drain problem? I have no idea where the Lowjack unit is hidden or how is has been connected to the car battery.