i got a pioneer head unit dehp930, 2 12" momo sub, 2 rockford bd1000, and rockford 400.4 amp, and kicker crossover.
this annoying thing always happen when my engine was on and when my volume was at like zero.
when the volume is at zero you could hear an annoying noise like buzzing or something. (it is not the music).
always happen when the engine is on. i don't think its the engine. could it be the installation? or "bad grounding"?
please tell me how to fix it.
there is a sound also when the engine is off and when i push the gas pedal a pitch noise occur.