Ok so I have been trying to put a head unit in and get it working the last few days but had no luck it got a really weird problem so here i got i had a spare head unit laying around put that in and wired it up all ok and it powered up put a CD in and no sound from my speakers so i checked the wiring it was all good. fort it may have been the head unit so i got a new one still did the same after i wired it up and then went a got some front speakers to put in thinking it could be them wired them up still no sound so checked all the wiring rewired it all up again check contrarily in he speaker wires it was all good. And check setting on the head unit and check fuses all good. It is really weird any ideas of a problem