So I'm trying to fix a partly bungled wiring/cable installation that our electrician/contractor has in place. At this point the cables are buried in the walls/ceiling and we are past the point that I can run new cables etc. The Airport Express will only work as a network extender over hardwire. All I wanted was to bury a Cat6 line in the wall so I could connect and Airport Extreme at one end and an Airport Express at the other end of the house. I was gong to do that by plugging the Extreme into the wall at one end and the Express into the wall at the other end. I think I can still do this, but I need some help. Currently I have a bare (no connectors) cable from where the Extreme is running out to a metal box in the back of the house. There is also a bare cable running from where the Express is to the same box. Questions... 1) How do I connect the two cables in the metal box to ultimately provide a run from the Extreme to the Express? Can I just buy male and female RJ-45 connectors and snap them together? 2) How do I wire the cables to the ethernet jacks at the wall port? (I'm confused about 568a, 568b, cross-over, etc. standards). The routing plan looks something like this: Airpot Extreme ---> Standard Cat6 Cable --> RJ-45 Wall Jack (???) --> Bare Cat6 Wire (buried in walls) --> Box (Connect two Cat6 Cables) --> Bare Cat6 Wire (buried in walls) --> RJ-45 Wall Jack (???) --> Standard Cat6 Cable --> Airport Express Any help is really appreciated.