is this an aftermarket HU?
Are your talking about preouts or speaker outs?
If it is your speaker outs, make sure that you ISO blocks are conencted properly and wrap some electrical tape around them to be on the safe side. Also, double check all of the wiring - make sure that the speaker cables are connected correctly (follow you HU's manual). Also, it would be worth buzzing out the all of speakers cables too :)

If its your preouts, then there is sumtime a setting on the HU to switch them on/off etc and set the volume output on each one :)

However, it sounds like the thing has gone tits up :( See if you can take it out and try it in a mates car :)

my head unit is not giveing out speaker signels is ther another wire from the wire loom apart from the speaker wire that controles the signels

please help geting very pissed off with it!!!
:mad::mad::mad: