yea not trying to be tight to you guys but the car should be made to not let water in if it is its generally a fault with the car. that said blasting high presure water from underneath the car is not generally going to happen but you have to think all electrics should be sealed/covered as with the lights.
but when i did the pulsar in the laser wash it came up awesome no drama's took the skyline in didnt do shit black just wont clean unless you get some physical object on the wash the dirt off
*note i do not work for car lovers hehe*