Make sure the power switch is OFF on the Game Boy Advance.
Remove all accessories (including lights) and games from the
Game Boy Advance.
Note: Due to the size of the e-Reader, most light
accessory devices will not be able to fit over the e-Reader.
Insert the e-Reader into the Game Pak slot on top of the Game
Boy Advance.
If you wish to connect your Game Boy Advance to another device
(such as the Nintendo GameCube), please make sure:
The game you are connecting to and the e-Reader cards you
are scanning are compatible with one another. You should find
this information in the instruction manual.
Some Nintendo GameCube titles may require that the Nintendo
GameCube Game Boy Advance cable is connected to a specific
port. Please consult the manual for the Nintendo GameCube
game you are playing.
Turn the Game Boy Advance power switch to the ON position.