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Thread: where does the blue wire in the aftermarket antenna adapter hook up to

  1. #1
    Registered Member


    Join Date
    Apr 2019
    Posts
    2

    where does the blue wire in the aftermarket antenna adapter hook up to

    so i just installed a aftermarket carplay sterio,

    2 things currently dont work

    the steering controls which i dont care about thanks to the HEY SIRI capability

    and the AM/FM channels

    i think the reason for the AM/FM issue is that i wired the blue wire on the after market antenna hookup incorrectly

    this is the one i bought https://www.amazon.com/gp/product/B071CK6W66

    does anyone know where the blue wire is supposed to be hooked up to (i wired it manually wire to wire using a wiring diagram)


  2. #2
    Registered Member

    2012 Mazda 5

    Join Date
    Apr 2013
    Location
    Vancouver
    Posts
    717
    From someone one Mazda 6:

    The mysterious blue wire should go to a 12-volt source that is only active in the accessory or run key positions.
    It supplies power to the RF amp module for the antenna wires, I just wired it to the red ignition wire behind the radio.

    Not sure same one the 5.

  3. #3
    Registered Member


    Join Date
    Apr 2019
    Posts
    2
    Quote Originally Posted by Vasy View Post
    From someone one Mazda 6:

    The mysterious blue wire should go to a 12-volt source that is only active in the accessory or run key positions.
    It supplies power to the RF amp module for the antenna wires, I just wired it to the red ignition wire behind the radio.

    Not sure same one the 5.

    thanks , that makes sense

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