Hello! During the winter or when it is really cold out, I let my 2007 Pontiac G6 sit over night and the next day it is dead. I had the battery tested and it was good (year old) and also had the alternator tested which was also good. Now that the weather is better I've tested all the fuses and found that Fuse #20 Body Control Module stays on when the car is off and is the only one drawing power from the battery. I would like to know what I should do next to continue the diagnoses? The car runs fine but my battery shouldn't die over one night. Thanks in advanced for any suggestions this problem has been bugging me for a while.