help with audio thru

For a project I need to amplify the audio connected to "Input", while getting the same signal in the input to get straight to "Audio Thru".
"Audio Thru" needs to be the same signal that is going in on "Input".
And also "Input" needs to get converted from stereo to mono.

Is the connection on blue ok? Do I need to connect some resistors... somewhere??

Thanks!

2 items u need;-

  • audio Y cable splitter
  • stereo to mono adapter