Re: Trunk light fuse
I found this on the forums not sure if this applies to a 2006 The dome light and cargo light are common to fuse 9 in the under hood accessory block.
In automatic mode, the ground to cause them to light is supplied by the BCM ( Body Control Module ) on pin 18 of connector 4.
The BCM is reading all the door and lift gate / trunk switches ( via the CLP - Central Locking Pump ) in order to determine if the lights should be on or off, so I would suspect one of those 3 would be the culprit. Hope this helps