This is the switch I replaced.
http://www.fcpeuro.com/products/volvo-i ... 90-9447804
And in this thread, someone posted a diagram which was similar, but some wires have different colors. It seems the OP also had different wires than the diagram, but he did not say where he plugged his wires in.
http://www.matthewsvolvosite.com/forums ... =1&t=59877
Here is a picture of my switch. I have attached the wires according to the diagram except for the wires I don't have. My wires are: blue-yellow, red, green-yellow, purple-yellow, white-yellow, and regular yellow.

If anyone has better information or even a picture of their pinout, that would be greatly appreciated!