[tonksie93]

I have base audio and i have fitted aftermarket amplifiers and a DSP. I have a static high pitched buzz when my cars engine is on. My headunit, DSP and both amplifiers all ground straight to the battery. When i unplug ONE of the RCA’s going into my DSP’s input the buzz stops. But when both RCA’s are connected the buzz is there, when both RCA’s are disconnected the buzz stops too. I also rerouted the right input cable thinking it could be getting interferrence from the 12v alternator cable running down the right hand side of the car, still no luck.

Any ideas?