Chrysler Repair: Concorde: disconnecting battery for storage, fuse box, current supply

Question
Do i have to unhook the battery to store my 1999 Concorde over the winter?
HOw is this done, the battery is buried in the bumper.  

Answer
Hi Fraser,
The easiest way to disconnect the battery current supply is to remove resistor #19 which is for the circuits that are otherwise connected when the ignition switch is off. Look under the dash on the driver side for the fuse box where you will find #19. YOu should do this whenever you aren't going to use the car for more than 3 weeks.
Roland