imported post
your going to have to spend a day on your wing pulling connectors apart, looking for trapped moisture & corrosion. the water is acting like a jumper cable & connecting power where it normally is off when your key is turned off. I would also un bolt your main fuse panel & look at the underside for the same issues. have a can of WD-40 with you & spray all the connections that you pull apart because it displaces moisture @ 40 parts per million.
Keep us posted!
your going to have to spend a day on your wing pulling connectors apart, looking for trapped moisture & corrosion. the water is acting like a jumper cable & connecting power where it normally is off when your key is turned off. I would also un bolt your main fuse panel & look at the underside for the same issues. have a can of WD-40 with you & spray all the connections that you pull apart because it displaces moisture @ 40 parts per million.
Keep us posted!