I have a parasitic draw and I would like to start with the door trigger. I notice it drops voltage .1-.2 volts when the door is opened, and it turns on the DIC to display mileage and the radio illuminates for a bit.

Im getting down to 11.9 after a few days

Does it just unscrew? Or is there a fuse for it or something? Or do I need to take the trim apart to get to the wires?

 

My 2011 LT shows mileage on cluster when door is opened for little while, always has….but I dont have a parasite current draw. Are you sure battery not going bad?

 

The door buttons are sensors not switches. They tell the computer the door is ajar, then the computer does whatever it is programmed to do, like turn on the light, display odometer.
No fuse because the signal is ground.
That kind of draw can be the result of some OBD2 codes. If some of the EVAP codes are failed the testing goes on overnight, which means the computers are on full power. They normally run once every night.
Look for corrosion at ground points, that is a sign of a short nearby. If there is a fuse in position #11 under hood remove it, that inhibits the tailgate lock.