I'm getting interference through my speakers that are wired up to my amp, u know that annoying buzzing which changes with the revvs of the engine.
I've put an alternator mounting noise surppressor on and i've wound my amp +ive and -ive round a ferrite ring but i'm still getting the buzzing.
I've tried moving my earth and all cables are run down seperate sides of the car.
P.S. I know this should be in the Ice & Security section but no1 really looks in there!