Dead battery- what could it be?

[MikeMcMo]

Originally Posted by blue62

In the passenger wheel well behind the wheel well liner there is a switch and a valve that are linked to the EVAP system.

Thanks for the tip, but it turned out to be something under the passenger seat. Pulled the fuse for that and it stopped. Put the fuse back in, it started again, but then I hit the seat adjusters and it stopped. I have to take the seat out and see if there's anything obvious I can see but I'm not optimistic, and I don't know if I could count on it not happening again and running down the battery at the worst time, like in an airport parkign lot. I'm outta my depth with electrical stuff so might have to throw myself upon the mercy of a shop.