5.1 input Sony MHC GN88D

I want to connect 5.1 audio to sony gn88d from my pc.But sony gn88d does not have 5.1 channel aux input.On its main board,There is an FPC connector named FR,FL,SL,SR,C,SW etc.

I connected phone audio there.Audio is not clear and broken audio. In schematics PCM1609KPTR (Digital to analog converter ic)> circuit ( filter or something)>M61530FP-D60G(surround volume control).



When I connect phone audio to the circuit(filter ?) before the surround volume controller ic, the audio is clear but 90% volume is decrease.

Any solution?

Or

Is it possible to convert the phone audio signal with the same characteristics analog audio coming from the PCM1609 ic?


Sorry my English is bad.
 

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