No he didn't put a tube in the wing in mine either. What I did was drill a small hole in the bottom of wing then I drilled two holes through the side of the fuse abuot a 1/4 or 3/8 of a inch from the bottom. One hole right under the hole and one toward the back then just run your wire back and fourth through the holes. I had a Su Do Khoi done the same way works good. I hope you can understand what I am talking about was going to take a picture but you can't see the wire because it is through the blue part of the plane.