Hey Smart crew, I have an issue. I've installed a Pioneer AVIC DVD and nav unit into my Smart For Two (Pulse). It looks killer but... I have a wicked horrible noise in my amplifiers. It's not the ordinary inducted stereo noise, it's more like a creaming whinning noise.
I'm a professional installer so I've done the due diligence and swapped head units, amplifiers and cables. I'm convinced that it's not the equipment. My question is, has anyone else come accross this problem? Is it common to this car? Can it be rectified? Lemme know yo'.