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Thread: 2009 Mazda5 Radio Wiring Harness

  1. #1
    Registered Member tefloncandi's Avatar

    2009 Mazda5

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    Jul 2010
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    Waco,Texas
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    2009 Mazda5 Radio Wiring Harness

    Does anyone know what the wiring color code for the radio harness, in particular i am looking for the light wiring because I removed my Pioneer radio which was installed professionally and they told me that I will not be able to dim or brighten the lights on my unit. As I posted before it is too bright. Today I removed my unit and found out that light wire is not even hooked up so I do not know how the unit is getting power to light it up?????
    The unit is a Pioneer AVH-P4300DVD
    Any suggestions??
    Neil"Tefloncandi"Mala
    [SIGPIC]

  2. #2
    Registered Member dieseldriver's Avatar


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    You may just be able to tap into the rear wire pair of the dimmer that's on the dash. It's just a potentiometer that varies the input voltage. Just use a vampire tap to tap into the positive wire.
    Quote Originally Posted by tefloncandi View Post
    Does anyone know what the wiring color code for the radio harness, in particular i am looking for the light wiring because I removed my Pioneer radio which was installed professionally and they told me that I will not be able to dim or brighten the lights on my unit. As I posted before it is too bright. Today I removed my unit and found out that light wire is not even hooked up so I do not know how the unit is getting power to light it up?????
    The unit is a Pioneer AVH-P4300DVD
    Any suggestions??
    Currently own:
    2012 Mazda5 GT -- Clear Water Blue Mica
    2012 Speed3 Touring with Tech Pkg. -- Crystal White Pearl Mica

  3. #3
    Registered Member SonicBoy's Avatar

    2012 Mazda3 GTE - Indigo Lights Mica

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    Toronto, ON Canada
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    154
    The unit probably just uses full power if the light dim lead is not connected. This is the default for most systems as installation into older cars withouth the dim lead would mean no lights.

  4. #4

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