Battery Dead problems of the 2008 Saturn Outlook

My 2008 Saturn Outlook recently started leaking water. I first noticed that my front passenger floorboard was wet, in December 2015. After noticing this I started having issues with the rear windshield wiper continually going, I could not turn it off. I then started having trouble with the radio staying on when I exited the vehicle. Within a couple of days my car battery died and I figured this is why I was having those issues. I replaced the battery with a brand new one. On Jan 19, 2016 I got into my car on an extremely rainy day and noticed a huge puddle of water on the front passenger floorboard. I looked all around the car and could not find any leaks, nothing from windshield, sunroof or damaged weather stripping. I took out the mats and the car dried out. On Jan 31, 2016 there was another extremely wet and rainy day and once again water was pooled up in front passenger floorboard. As I drover car away water started pouring into the vehicle from all openings, ie seatbelt harness, windshield, from below dash, vents, everywhere. All of the passengers in car were getting wet. Once home I parked the car in the garage and I took out floor mats and opened up windows for car to dry out. After a couple of days the rear windshield wiper started going off repeatedly on it's own, like before. I could not turn it off, once again. Then the radio continued to stay on once the car was turned off, key removed and driver door opened. I last drove the car on wed night 2/3 and parked in the garage overnight. When I went to get in car the next morning it was completely dead. No power at all, brand new battery. Then the key got stuck in the ignition and car was stuck in garage. I had to have tow company come and tow car off to dealership. I filed complaint with gm. I see this has been a problem for others as well.

Last week we had heavy rain and rain began leaking into the car near the front pillar on the passenger side. The next day the car would not start and it appeared the battery was dead. When I had it tested it showed it needed replacement. I purchased the battery and went to have it installed. While I was there I turned the car off and the engine was still running. The technician advised that the fuse box was coroded and cleaned the connections. The car continued to remain on throughout the day until it seemed to dry out. It rained again yesterday and the same issue occurred where there was water leaking from the driver side pillar near the air bag. I noticed the car staying on one time and then the next morning the car would not start. I began researching the issue and found similar complaints from other gm users. I am concerned not only about the electrical system, but potential mold and contacted the dealer as many noted there was a service bulletin. They were unable to assist as there has not been an official recall. I would urge that this be pushed as it is another known issue with gm cars that gm refuses to do anything about: 2007 gm acadia consumer complaints odi id number specific to water leak: 10258230 (this is my complaint id #) 10255735 10254149 10248331 10211267 10210839 10210533 2008 gm acadia consumer complaints odi id number specific to water leak: 10246694 10243591 10241649 10230134 10229896 10212682.