BMW E-34 525i 01/1989

seat back
Hello again guys, I have another question. Recently I have discovered that my passenger seat was making an interesting creaking/crackling sound when I was going over bumps. So I decided to check it out because I never remembered to check because I noticed it when driving. ANYWAYS, I went to the seats back pouch and was fiddling around looking around for something inside of it when, of course, the back falls off. (???) I cannot get this thing back on completely and I am wondering how this connects to the back of the seat... Is there a clip missing? There are metal pieces protruding from the piece that fell off, but I cannot get them to connect with anything. Any suggestions/diagrams? It would be greatly appreciated, I don't exactly enjoy the thought of my BMW falling apart... :-p

Also, Where is the fuse for the passenger side power seat controls, mine has apperently blown out recently, is it under the seat or is it in the engine compartment?

wiper blades
Also, while I have your attention, where do I get the lobsided wiper blades for a bmw E34 (1989 5251)? Apperently standard wipers don't fit, it took Les Schwab 3 people and my windshield (they broke it by accidentally bumping the empty wiper mount onto the glass) to figure this out. Why did I even go there, I disturb even myself...

Thanks guys!