Noise in Audio:
- If noise is a "whine" that goes up and down with engine speed, confirm that Amplifier and any other source unit (Radio, EQ, X-over, etc) is properly grounded.
- A "clicking" or "popping" noise at a rate that follows engine speed is generally induced by vehicles ignition system. Confirm that the vehicle is equipped with resistor plugs and plug wires. Or, ignition system may need service.
- Speaker and input wires should not be routed next to the wired that interconnect lights and other accessories/equipment.
- If above steps do not improve/clear noise interference, the system should be checked by a professional mobile audio installer.
If this tip in any way helped you please do not forget to rate it, thanks.