hey fellas i just got a set of clarion 6x9 splits 4 the parcel shelf and intalled no worrys but now i hav interferance which i didnt hav with the previeous pioneer 6x9s in the back, ive figered out that its an my sub rca when i unplug it the humming goes away, all the power wires and rca's run on seperate sides of the car.. but its got me stupped why i get interferance i thort also it might be the location on my crossovers since the mounted on the back of the sub box same with the amp....any help at all will be apretiated

Sounds like a Ground loop...

Look into getting a ground loop isolator.. Should stop the interference you speak of...

what are these ground loop isolater u speak off, never herd of them , how much usually

http://www.aerpro.com.au/list.php?pcode=AP305&cat_name=car+audio+accessories&cat_no=07&product_name=RCA+Ground+Loop+Isolator&cat_sno=146

do they work that well tho?/

They can... Use to have one on my last car.. but they do cut your Higher frequencies out... So if its a Sub channel then there should be no issues...

cheers for the help mate i put my HU back in with the center consolle back together too and the noise disapeerd

I found that, in mine, it was caused by having 2 earths on aftermarket head unit. Factory earths through radio chassis from mount, I just disconnected earth on aftermarket loom and let it earth through stereo chassis like original did and it eliminated noise. Might have shifted earth back to where it was when you put it back in.

There we go Ground loop found and elliminated..