No Music sound after LCD screen replacement

I have replaced my broken LCD screen. After a few hours putting all connectors together I noticed that everything is working fine except for the audio for Music.

All other audio works through speaker and headset without a problem but no audio for the music or videos at all.

Did I miss or fried anything? I have tried to reconnect the cables/connectos, better connect the flat ribbon and still the same problem.

There is one piece I left out which is a metal clip for the white antenna. As it is to hold the 2 pieces of the white antenna and my signal is fine I think had left this out is not the problem.

Please someone give me some light in here.

Anyone had a similar problem?