My Gamecube has a Party Trick and How it Works

In this video I show a really neat fact which is common between both Japanese and North American Gamecubes.
Songs used in the video from Streambeats (in order):
Wildflower Acres
Peel and Stick
Trapped in Memories
Hella Fresh
First Light
Quiet Moments With You
Dusty Memories
High Tide
Midnight Breeze

[@Arukaruderu]

you only put a switch on the back whit the bridge of the reg select.....