1) Install Navball Texture Changer via CKan or manual install

2) Once installed copy the following files:
	NavBall Texture\Skins\Squeaky.cfg"
	NavBall Texture\Skins\Squeaky-DIF.png"
	NavBall Texture\Skins\Squeaky-DIF-thumb.png"
	NavBall Texture\Skins\Squeaky-emissive.png"
	
and paste them into NavballTextureChanger skins folder here:
	YourKSPInstall\GameData\NavBallTextureChanger\PluginData\Skins\
	
3) Enable the Navball via the ingame mod menu.

Enjoy :) 