I bought some antennae tubing from the hobby store. If you have a Sullivan tube, that would work as well. The only thing is that you would have to drill the hole bigger. I probably would've used a Sullivan tube except for the fact that I replaced the wire with fishing leader material since the hobbystore doesn't sell replacement pull-pull wire. If you need some, hit Tom up. You may also try just running the tube from the exit hole and then tacking it to the side of the former. You just don't want it to rub, I think pull-pull cables can be routed around stuff. But I could be wrong, someone else want to verify this?