Guitar Hero Wireless Controller with Adjustable Strap for Wii Guitar Hero Rock Band 3 2 Remote Gamepad Joystick Console|Replacement Parts & Accessories| - AliExpress
The Raphnet Wii Classic Controller to USB is the real del. It's seriously as good as a Wired Xbox 360 guitar. Legitimately buy one of these if you have a Wii Guitar.
Guitar Hero III: Legends of Rock - Nintendo Wii (Game only) - Walmart.com