Hi everyone. My first post here but since I bought my L322 a month ago I've had issues and this forum has helped a lot!

The main one I'm really struggling with is the lack of sound from my radio/sat nav/ CD which seems to be a common problem (though I've noticed theres a shed load of common problems with this car!). When I turn the car on all I get is a disturbance sound but all the functions seem to work e.g. sat nav, switching CD's etc

I've followed most peoples posts and suggestions but still nothing, perhaps someone might shed some light. I've done the below so far:

1. Checked two fuses and replaced in glove box (though both were fine)
2. Swapped the amplifier for one I got on ebay from a breaker (good feebdack etc and said it was working)
3. taken the dashboard apart to check for fuse behind the sat nav screen (no fuse on this one with 16:9 grey TV)
4. Sprayed special WD40 electrical component spray into the plugs to remove any gunk
5. Checked signs for water leak - nothing (though the big block plug looks slightly grubby but I don't know how best to clean the female connecters)
6. Pulled out half my hair

Please, if anyone can offer any other suggestions it would be greatly appreciated because this is driving me insane now!!

First clean off the WD40...and clean properly with Electrical Contact Cleaner....

Most common issues are the BM54 unit or one of the components in the rear quarter having damp