No Off Position on the Genius Switch

When G moved in with J, they downsized a few items in our direction. One was J's boombox. Good sound, but no disk changer. As it happens, we had a Pioneer six cd changer, but the rest of the unit died. So, how can we marry these two items? The boombox has no input jacks. Solution! One of those rebroadcasting gizmo's people use to play items through their car music systems when there is no audio jack. I happened to have one on hand, and bingo! It works!