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high pitched noise with lights on
ok, having an issue with the amp install...
when i turn my lights on i get a strange hum coming from my rca cables then through the car speakers...If i unplug the rca cables the high pitched noise goes away.
My system is run like this....
car battery > dc-dc inverter > laptop and touchscreen > amp > speakers
dc inverter = hooked directly to battery
laptop and touchscreen both get power and ground from dc inverter
amp = power from battery, ground on chasis, remote hooked to dc inverter.
the problem is when i plug the rca cables into the amp...even if the laptop is not connected to the amp i get the a piercing high pitched noise through the speakers...i know the issue is not the dc-dc inverter or the laptop because i can plug headphones into the laptop and it works great. what would cause the amp to give off this high pitched noise when i turn the lights on.
I have gone through the sticky and actually cleared up a lot of other alternator noise that i had before. I used to have a lot more noise coming in and it would increase with rpms...i installed a GLI and it took care of everything except this high pitched shriek when i flip the lights on. I thought it might have something to do with my hids but i unhooked them and same problem.
BTW, the system sounds great when the lights are off.
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Linear Mode
