The left-hand speaker is designated by the lettering ME102A-L and is located by the silver and blue ribbon cable running across the top of the battery.

Remove the Ribbon cable labeled CN2 by gently prying up the white latch of the black and white plugs by using the small blue plastic opening tool.

Remove the Ribbon cable labeled CN1 by gently prying up the white latch of the black and white plugs by using the small blue plastic opening tool.