Does anybody had this problem before? My back up clear light burnt out. When the Ford dealership replaced the bulb we saw there was half a cup of water in the housing. They said I need to replace the whole housing, it'll cost about $200. I don't think the whole housing needs to be replace. There has to be a way to seal the four bulb plugs only. The housing looks sealed, I think the water is getting into the buld sockets plugs, the one you twist pull it out and insert the bulbs. Some said to put silicon seal. But where do I seal it??? Any other suggestions on how to fix this problem???