Hope someone can help.

Trying to connect sound bar to new TV.

Sound bar has white & red female sockets.

Old TV had white & red female sockets - simples!

New fangled TV has one yellow female, & came with an adapter which has a
single yellow male joined to 1 x red, 1 x white, 1 x yellow females.

Logic told me to connect red/red & white/white ignoring yellow.

But it don't not work :-(