So I've seen the thread:

http://forums.nasioc.com/forums/showthread.php?t=914064

but didn't see anything about how to do it for a 04. Is it the same as the 06?

I would appreciate any pics or descriptions about which harness to unplug.

It's the same for an 04. If you take the glovebox out (takes 5 minutes) the harness to unplug says 'DRL' on it. IIRC, it's black with a whiteish plug.

If you search, you'll find many descriptions with pictures as well.