The slip ring can be installed directly into the turret rotation ring. Just be sure to point the "stationary" end into the turret and the turning end into the hull. (I forget the names of the ends...too lazy to look them up.) You can find them on eBay, mostly coming from China, pretty cheap.

Here's both of my applications:

http://www.rcuniverse.com/forum/rc-t...l#post12061337

http://www.rcuniverse.com/forum/rc-t...l#post12052785

A couple of videos on the subj:

https://www.youtube.com/watch?v=PWuOUS8VqJE

https://www.youtube.com/watch?v=Bply7z7__5g

The Taigen turret rotation rings are already setup for the 360 rotation. I used Crius' video to modify my standard HL ring and the Taigen video to find a way to install the slip ring into the same standard HL rotation ring. It takes a little time and patience, but is an easy modification to do.