EDIT no. 2: so we took it to an sound pro. We have arrived at in conclusion that it is maybe not coming ANYWAY from the power cables (goes away completely whenever RCA's are disconnected) and it's also perhaps not from the RCA cables as the whining is in the front side, no matter the setup regarding the RCA's to the amp(though it disappears once we disconnect the front cables). Energy line sound filters did not work, ground loop isolators didn't work, no RCA noise(even with all the cable operating OUTSIDE the automobile it still whines the exact same). Just thing I can think of left: either the head product is picking up noise(but I'm unsure as the back crossover speakers don't whine) or the inductors (coils of magnet wire-basically an electromagnet) in the front presenter crossovers are picking right up the disturbance. I'm going to attempt to Faraday cage the crossovers with aluminum ground and foil it to see just what happens.

EDIT(again): therefore works out there was whining from the straight back. Eliminated grounding problems, but noticed the opposition involving the RCA shields plus the head product ground is 3 Ohms. Greater than it should be, but if we operate a cable through the shields to your ground it does not get rid of the whining. One concern we have actually, nonetheless, could be the amount of my amp's ground cable. Does anybody know in cases where a too much time ground cable may cause noise(it is going directly to the battery).
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Weighing in at around 825 kilograms, or more or less 1820 pounds, the 1.4-liter engine, making 310 horsepower at 8,000 RPM, is enough to get Naumann's small front-wheel-drive Polo scooting forward like the piglet wanting to escape its death via tickling, as well as its power-to-weight ratio clocks in at around 341 hp per ton, or exactly like compared to a Nissan GT-R.

YouTube channel HillClimb Monsters uploaded, aided by the authorization associated with the owner for the initial movie, a highlight reel of some of Naumann's supercharged Group H VW Polo screeching up a hill at an event in 2015, also it makes some of us at The Drive consider going on a crusade against turbocharging, simply so we can hear more whining like this (although some of this War Zone's articles elicit such a effect from numerous Facebook commenters.)

Regrettably, the uploader of the video clip states that Naumann is in poor health, and fighting for his life. With regard to Naumann, and his Polo that is magnificent hope he survives to race once more. People and their custom-engineered cars don't deserve become so cruelly parted. Godspeed, Herr Naumann.

I've fabricated some brackets and fixed an AMR500 supercharger to cold side of Mazda MX5. Made the throttled volume small, and started using it in a great package that is tight. Have a bypass employed by 100% boost dump at idle, progressively shutting around half throttle.