Hey all,

About a year ago i got a system put in my ute, JL Audio 6" splits, JL Audio 4ch amp and sub. Ever since i had it put in i've had a hissing noise, like the computer speaker noise but louder! I've always blammed the hi-lo convertor i had but i've recently upgraded and added a Pioneer head unit, JL Audio 6x9s, JL Audio mono block and a 10" sub and i'm still getting the hissing noise I have redone all the wiring (except the front speakers) and noticed the noise only comes from the front splits. Could it be the wiring or something else? I'm a bit lost when it comes to stuff like this.

Thanks, Mark