Things You'll Need
Instructions
Download WAD Manager and extract the contents to your SD card. The archive is less than a MB and will take a few seconds to complete. Double-click the WAD Manager archive, and then click "Extract" from the toolbar. Choose the drive where your SD card is inserted.
Download the channel or IOS WAD you want to install on your Nintendo Wii and place it in the "wad" folder on your SD card.
Insert your SD card in your Wii and click "HomeBrew." Click "WAD Manager" to run the app. You must have your Wii softmodded, complete with a HomeBrew installation, to use WAD Manager.
Click "SD/USB" for the source of your WAD, and then use the arrows on your Wiimote to select the wad to install. Press "A" on your Wiimote to install the WAD. Follow the on-screen instructions to exit and return to your Wii main menu.