tubing that came in my 4*60 kit. The Rx is right behind the battery. Antenna wire comes out and goes to the top of the fuselage and behind the servo tray. Thats where my tube picks it up and takes it into the space behind the cockpit in the turtle deck. I sheeted my turtle deck and so I was able to slide the tube and antenna down the top side of the turtle deck between the formers. Length was just right so I did not have to take it out of the plane at all.
If you go to my profile and click on my RC Homepage, go to pictures and go to the 4*60 album on page 2. I think there is a pretty good picture of what I'm talking about.
Hope this helped a little........