no/cracked sound from spekers on left side of car Accord 2007

[SirHansen]

Hi

Today I heard that the sound from my fron and back speakers on the left side had bad and cracked sound. The right side is ok.
the radio and speakers are original.
Have any experienced this issue? Is there a connection at the rear of the head unit that is loose?
Anybody that hve the wiring diagrm for the speakers?

Thanks ☺

 

[freddofrog]

http://typeaccord.co.uk/forum/topic/18316-honda-accord-2003-executive-speaker-diagram/

 

[SirHansen]

Thanks!