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ANOTHER ground question

Discussion in 'Audio & Video' started by HitTheBid, Jan 2, 2011.

  1. Jan 2, 2011 at 4:41 PM
    #1
    HitTheBid

    HitTheBid [OP] Member

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    I searched through several forums and am not sure I have heard anyone address or question the issue I am having.

    I am getting a loud hum upon starting my truck that gradually fades within 30 seconds. The sound is louder the colder it is outside. The hum is only present with my door speakers and not my powered sub. The amp running all my door speakers has an 8 gauge power and ground wire.

    The ground is connected under a rear seatbelt bolt. Paint taken down to bare metal. I spent the weekend trying different ground spots with zero luck.

    Help!
     
  2. Jan 2, 2011 at 4:49 PM
    #2
    Johns Taco

    Johns Taco I'm not 4x4, and have an open diff. So i'm 4x1

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    Ground wire should be very short, if your rca cables are anywhere near your power wires than this is probably your problem. If your rca's are run with your power wires than it's definitely your problem.
     
  3. Jan 2, 2011 at 4:49 PM
    #3
    HitTheBid

    HitTheBid [OP] Member

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    Ground is about 1-2 feet from amp tops!

    I did try sanding out a patch about 2" in diameter surrounding the ground spot. No luck. Where is your amp and ground spot?
     
  4. Jan 2, 2011 at 5:04 PM
    #4
    Johns Taco

    Johns Taco I'm not 4x4, and have an open diff. So i'm 4x1

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    I have 3 amps and they are all grounded directly to the frame, the way you have your amp grounded should be ok. I would look to make sure your rca's are not near a 12v power source, make sure you also use an adapter plug to hook up you deck to the factory wire harness. How old is your amp?
     
  5. Jan 2, 2011 at 5:33 PM
    #5
    HitTheBid

    HitTheBid [OP] Member

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    Thanks everyone. I don't remember where the 12v is wired in relation to the rca's. I am going to check that stat!
     
  6. Jan 2, 2011 at 8:43 PM
    #6
    HitTheBid

    HitTheBid [OP] Member

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    The amp is 3 years old and the problem has been there since the day I initially installed it.....yes, 3 years ago. :eek:

    I am using an adapter plug for the wiring of the HU. I definitely need to check the wiring of the 12v and rca's.
     
  7. Jan 3, 2011 at 8:39 PM
    #7
    silvr07taco

    silvr07taco Well-Known Member

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    adapter plug?
     
  8. Jan 3, 2011 at 8:42 PM
    #8
    MotoXdoer

    MotoXdoer taco?

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    ground to frame and look into grounding kits to help with power surges u might run into. ebay and best buy sell them
     
  9. Jan 3, 2011 at 9:14 PM
    #9
    BlueTaco07

    BlueTaco07 Super Mod!

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    could be your air conditioner?
     
  10. Jan 3, 2011 at 9:47 PM
    #10
    HitTheBid

    HitTheBid [OP] Member

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    Mispoke....The wiring harness.
     
  11. Jan 4, 2011 at 6:21 AM
    #11
    ItalynStylion

    ItalynStylion Sounds Gooooood

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    A low hum that fades after the car is started? That doesn't sound like a ground problem at all. A ground problem will usually sound like a high pitched whine that increases with RPM and electricity use (AC, windows, headlights).

    I'd say it's a problem with the amp. You stated it was there since you installed it 3 years ago. What amp is it?
     
  12. Jan 4, 2011 at 6:22 AM
    #12
    ItalynStylion

    ItalynStylion Sounds Gooooood

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    And why after 3 years are you just now figuring it out lol?
     
  13. Jan 4, 2011 at 6:32 AM
    #13
    atsaubrey

    atsaubrey Dealer/Sales Rep for Sundown Audio.

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    Are you using a LOC with the stock headunit?
     
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