If anybody could help me with a 1996 850 Sedan Stereo Wiring diagram that would be great. My car model must be the most special volvo ever because I can't find the diagram anywhere on the internet. Thanks

 

For general wiring diagrams try volvowiringdiagrams.com Note that the 94-97 850s are mostly the same (except for the move to OBD2 in 96) and the radios are the same as the S70s in 98-00+

for the radio head unit, you can try googling "volvo 850 wiring diagram radio" and you'll find something like this:

volvo-850-head-unit-wiring-diagram