What he said.DESIREE said:I like that word "speculative". About covers anything they can't put their finger on. And the part about not engaging the dome light! What is that???
800 milliamps might be about what (1) interior bulb would draw, but the door switches, at least in my car, turn on like a half dozen bulbs!
I am going to go with the idea that I proposed with someone else's dead battery mystery: the trunk lid wasn't fully closed enough to flick the switch and turn off the trunk light. My theory has yet to be proved or disproved, but it is (in my mind anyway) definitely a strong possibility. Either the switch (which is mounted in the latch mechanism in the trunk lid) is touchy, or the trunk lid wasn't fully closed. While exploring for the problem you/they may have inadvertently solved the problem by closing the trunk. Or maybe when they measured the 800 ma. they had the trunk open without removing the bulb or snapping the trunk latch to its closed position. NAH!
If you can, leave one of the back seat backrests in the down position so that any light in the trunk compartment can be easily seen.