I checked the trunk and the right side compartment (opposite to where the cd-changer is on the left side), is totally soaked in water. Now I'm curious what would make water reach that area. because water in that area led to leakage into the battery area through the rear seat. Unless ofcourse there's a leak that's going both into the battery area and the trunk in the rear.
So much for great engineering !

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Whether you think you can or cannot, Either way you're right!. by Henry Ford.