Recommended wired instead of bluetooth for less latency and better motion/pointer controls. Also, remember to reassign your pro controllers if you are emulating multiple Wiimotes for multiplayer since loading these profiles will change your device to the first player's pro controller (SDL/0/Nintendo Pro Controller).
GameCube:
- Mario Kart Double Dash
Wii:
- Mario Kart Wii
- New Super Mario Bros. Wii
- Super Mario Galaxy
Add these .ini files to its corresponding location in the files
MacOS: /Users/<user>/Library/Application Support/Dolphin/Config/Profiles
Windows: C:\Users\<user>\AppData\Roaming\Dolphin Emulator\Config\Profiles\
Once you placed the .ini files, you can load the profiles in Dolphin's controller settings