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Silly Question re: Grounding Wire

Discussion in 'Audio & Video' started by cherylglenn, Nov 27, 2009.

  1. Nov 27, 2009 at 4:33 PM
    #1
    cherylglenn

    cherylglenn [OP] New Member

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    Okay.... I've never done anything with my 2005 Tacoma stereo before, but somehow got the idea to try and switch out my factory stereo with a Pioneer avh-p4100dvd.

    So, I think I've got all the wires connected correctly, except that I'm supposed to connect the 2 black ground wires to a ground (as well as the ground from my parking brake bypass) and I can't seem to see any obvious place to connect them.

    The only metal I see is a metal tube running in the back of the hole where the HU goes.... But there's no metal screw on metal.

    Can anyone tell me where I should connect them?
     
  2. Nov 27, 2009 at 7:19 PM
    #2
    DaytonLax14

    DaytonLax14 Well-Known Member

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    Just splice the ground wire that was already in your car with the ground wire coming out the back of the HU.
     
  3. Nov 27, 2009 at 7:44 PM
    #3
    Taco Ron

    Taco Ron Male Member

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    It will be much easier if you use a wiring harness that is made for our trucks. This allows you to connect all of the stereo wires to the harness then just plug the harness into the factory radio harness. Thus, no splicing or guessing.
     
  4. Nov 27, 2009 at 7:45 PM
    #4
    cherylglenn

    cherylglenn [OP] New Member

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    I'm so in over my head....

    Best I can tell I'm dealing with 3 different ground wires:

    1. The 1 on the toyota wiring harness
    2. The 1 on coming off of the receiver
    3. The 1 that is part of the bypass.

    I'm so sorry.... Can you please describe more of what I'm so supposed to do?
     
  5. Nov 27, 2009 at 7:49 PM
    #5
    cherylglenn

    cherylglenn [OP] New Member

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    Okay! Good.... I've got that much going for me. I'm using the wiring harness.

    So.... If I connect the black wires together from the wiring harness and receiver, what do I do about the wire that is coming from the bypass that is supposed to connect to the ground?

    I know.... So many questions!! :eek:
     
  6. Nov 27, 2009 at 8:00 PM
    #6
    Taco Ron

    Taco Ron Male Member

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    The ground for the parking brake is to tell the HU that you are stopped so it will allow you to play video. I would just ground it along with the regular ground from the HU, at the factory harness. Just double check to make sure it is looking for a ground and not positive voltage. I'm not sure if this will actually bypass and allow you to watch video while driving though. If that interests you, you should check out AVIC411.com. There is tons of info there about Pioneer HUs.
     
  7. Nov 27, 2009 at 8:14 PM
    #7
    Dane-Taco

    Dane-Taco Well-Known Member

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    Questions are not a problem bro. The ground on the wiring harness is connected to ground/common/chassis. Connect all of the wires together...problem solved!
     
  8. Nov 28, 2009 at 6:11 PM
    #8
    itsmyturn

    itsmyturn Well-Known Member

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    you cannot ground the parking brake bypass of that pioneer to work properly. the signal needs to be switched ground. you can do it with a relay and some extra wire
     
  9. Nov 29, 2009 at 8:01 AM
    #9
    808matt

    808matt Well-Known Member

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    i just installed my Pioneer last week. i didnt bother w/ the parking brake wire nor did i connect my ground wires and my HU worked. go figure.
     
  10. Nov 29, 2009 at 8:06 AM
    #10
    Cars0n`

    Cars0n` Well-Known Member

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    your joking right?
     
  11. Nov 29, 2009 at 8:18 AM
    #11
    808matt

    808matt Well-Known Member

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    nope. i couldnt find a place to attach my ground wire so i just taped it off and it worked.
     
  12. Nov 29, 2009 at 9:19 AM
    #12
    sooner07

    sooner07 1/2 man 1/2 amazing

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    that's not good.
     
  13. Nov 29, 2009 at 9:22 AM
    #13
    DaytonLax14

    DaytonLax14 Well-Known Member

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