Accessories Problem, Weird Electrical prob

I just recently purchased a 91 525i over here in Germany while I am stationed here. The last couple of days I was driving around and the wipers, power windows, and radio would lose power off and on. Now they are completely powerless. I checked all the in line fuses , fuses in the box, and the Unloader relay that controls the majority of it and I can't seem to find anything wrong. I wouldn't be too upset besides the fact that its starting to get warm here in Germany and I have no AC and the windows are stuck in the Up posistion and it rains every other day here and the Drivers window is down about 1 inch just enough to soak my seat, Not to mention the fact that I can't drive in the rain because the wipers dont work. Anyone have any Ideas what could be the cause of this problem I would greatly appreciate any input !!!!!
Thanks for your time
Trashed

For a temporary solution, use Rain-X. It's a wax for you windshield. If you're going over 40 MPH, you won't have any visibility problems at all. You won't need any windshield wipers.
I'll check unofficialbmw.com to see if there are any recommendations for the string of problems you're having.
Flunky

Thanks for the input did some reading on previous pages of this site and found out that it was the fuseable link right off of the battery had a stress fracture from behind the bolt that was holding it down. Took 4 days to find that out