Solution for sound problem

1, Checking whether activate the AUX and turn up volume in Sound setting.

2, Checking whether the optics fibre had been removed to the new plug( connecting CD)

3, Check whether there is curled pin in the power cable

4, Connect the RCA cable with RCA AUX cable

 1 Remove the fibre optics to the new connector:

2 Check the volume setting: 

3 check if the power plug has a bending pin


4 Add RCA-AUX cable to connect RCA plugs and AUX port