2006 Chrysler 300 Limited Parasitic Battery Drain?

With ignition off the car drains nearly 2 amps. I have tested all fuses and relays, front and rear electrical boxes, with only minor change, except for fuse #1 (Ignition Off Draw) in the rear box. By pulling that fuse the drain is stopped but the security system, power locks including trunk latch, radio/entertainment system, dash compass, and perhaps more, are disabled. Other than these, all systems seem to work with fuse #1 disconnected. Has anyone had any experience with this type of electrical issue? Thanks