For sale are two versions of this popular mod, specifically designed for easy installation with very high quality parts. The standard yaw kit includes a 3 position (off, slowest, slower) switch with LED indicator and the pro kit has two 6 position rotational switches for both yaw and pitch.
Both kits include all wire harnesses, board, switches prepared to be installed. The only soldering required are two points if you want the LED on the standard kit to show position, not required though. The pro kit requires no soldering at all.
The kit works with all Phantom 2 models (Vision, Vision+, Zenmuse) and the P3 Standard.
Kit prices are $49 and $79 respectively and include free shipping anywhere in the world.
For more info, please see www.yawmod.com.
I'll be glad to answer any questions.