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Ground for Head Unit

Discussion in 'Audio & Video' started by mistert, Apr 23, 2020.

  1. Apr 23, 2020 at 6:28 AM
    #1
    mistert

    #1
    mistert [OP] New Member

    Joined:
    Dec 1, 2019
    Member:
    #39397
    Messages:
    40
    Gender:
    Male
    First Name:
    Michael
    Vehicle:
    '16 Tundra TSS Offroad
    Rack with LED lights, carbon fiber wrap, bumper with winch, rear bumper, lift, and Moto Metal tires.
    I am getting alternator whine coming through the speakers and unplugging the RCAs doesn’t make it go away.

    I have 3 harnesses coming from the Metra wire kit for the head unit, Axxess steering wheel controls, and another for the back camera harness adapter. I was advised to ground the head unit to the chassis. Where is the best place to do this? I don’t see any good places with the radio removed unless I just ground it to the back of the stereo. I have an
    $280 Alpine ILX-W650 7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto
    Alpine ILX-W650.

    BTW, I have moved the grounds from the amp to another location which did nothing. RCAs are run opposite side of power and ground. I have a set of RCA ground loop isolators that I connected to a 4 channel JL Audio amp that did nothing.

    I believe the noise is coming from the ground from the head unit because I have it and the adapter grounds all going to a single ground of the Metra wire harness. Is there a place in the dash that would be a good grounding point?
     
    mistert, Apr 23, 2020
    #1
  2. Apr 23, 2020 at 6:43 AM
    #2
    spdrcer26

    #2
    spdrcer26 New Member

    Joined:
    Aug 20, 2017
    Member:
    #9166
    Messages:
    61
    Gender:
    Male
    First Name:
    Jason
    Bakersfield, CA
    Vehicle:
    2017 Crewmax
    Make sure on your ground from your amp that it is connected to raw metal on your chassis if there is paint grind it away- I had the same problem and this is where my issue was-
     
    spdrcer26, Apr 23, 2020
    #2
  3. Apr 23, 2020 at 9:24 AM
    #3
    mistert

    #3
    mistert [OP] New Member

    Joined:
    Dec 1, 2019
    Member:
    #39397
    Messages:
    40
    Gender:
    Male
    First Name:
    Michael
    Vehicle:
    '16 Tundra TSS Offroad
    Rack with LED lights, carbon fiber wrap, bumper with winch, rear bumper, lift, and Moto Metal tires.
    Yes I sanded the ground site down where I have my amps grounded. The issue is near the head unit. I think if I can find a good ground site, it will eliminate the issue. I think it’s from having so many adapters connected.
     
    mistert, Apr 23, 2020
    #3
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Alpine iLX-W650 7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto
$279.95
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