OK guys i need to bring this back from the dead.
Today I got a dedicated 4 gauge of OFC run directly from my amp to my battery, down the separate side of the car from the power.
Dont ask why I did this, it was simply to try and eliminate all of the audio quality issues with my system, as well as to appease my dealership who recently asked me to disconnect my ground for my amp out of fear it was doing damage to the pump in the rear bumper.
Anyway, it was a bad idea. With the ground moved the noise of the pump is still very loud (just as loud, if not louder). Also i can still hear clicking when i push on my brakes and when i signal to turn right. All of this was there with the ground in the trunk as well.
Now with the ground run directly to the battery i have all of the above still, PLUS the worse alternator noise I've ever heard. It goes up and down in pitch when driving as is common.
I'm starting to think the issue is not with my system or how its installed, and that the car just has bad power, either a bad alternator or bad battery. Is this possible?
Original troubleshooting steps included replacing the amp (sound was still there) , replacing the deck (sound was still there), DISCONNECTING ALL RCA's (sound still there). Have not tried any of these to fix the alternator noise though, as it is a new problem from today.
Im almost at the point where im going to disconnect my whole system (making the ground better has only enhanced the bad noises), i actually enjoyed how the car sounded naturally with no white noise and static the few days it wasnt hooked up.
I'm trying to think of fixes, or at least some troubleshooting steps i can take to continue looking into the problem. For the time being, im going to move my ground to where it originally was in the trunk i think, all the noises were less back then.
One idea I had was to have the system run off a dedicated battery. I have some spare power wire and im sure i can get my hands on a car battery, im thinking to hook the AMP up to this battery and turn the car on, rev the gas, and see if the noises are still there. This would proove the noise is indeed being introduced to the system through the power source and its not leaking in from the speaker wires/rca etc. It makes no sense to me how i can be hearing my tail lights blink through the sound system, and this is why i think its coming from the battery.
If this fixes then its a simple case of securing a small battery in my trunk and then figure out a way of it being charged without introducing the noise.
I have used professional installers for all the cable runs and i have used high grade cables, so im not totally convinced all of this noise is leaking into the system from the cables running next to each other.
Last edited by chris; 05-09-2013 at 04:26 PM.
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