Yes it has been covered many times, although I wanted to make sure.
A simple yes or no answer will be fine.

1. Start off with 9005 Socket w/ 9005 Bulb
2. Remove two plastic guides off inside the socket.
3. Remove 3mm of plastic off the exterior of socket.

Correct?

Now do I need to put the rubber o-ring off my 9006 socket onto my 9005 bulb? And now this 9005 socket plug straight into my stock harness, correct?

 

Come one now, help out an old guy.

 

sounds like you got it.

here's a link that was useful when i did it.

http://www.bmwe34.net/E34main/...t.htm