I completely agree with the previous post. You will have nothing but electrical "gremlins", for the life of that vehicle. The other issue, is that a newer vehicle will have a CAN system, whereby all of the computers communicate on a data bus network (only two wires). This wiring runs throughout the whole vehicle, so nothing is safe from the water intrusion. I don't even care if it is only fresh water, because, as I mentioned earlier, there is silt or sediment in that water, and these include minerals that conduct electricity. There is a reason that these vehicles are totaled, by the insurance companies.