Marznycx15x

I'm having a problem where there is some leaking of water into my driver side headlight. There telling me its through a seam but I don't see it. Anyway now my light is out and apparently I now need to replace my ballast (which I replaced a month ago), the head light housing, and the gem box on the passenger side (fog lights are out too). My plan is to change out the xenon headlight unit on the driver side and bring it in to another dealer. Maybe I could get it fixed. I have a 2005 Mazda3 with xenon lights. If anyone can help me out I would greatly appreciate it. Thanks