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  1. #1
    Established Member Two Rings
    Join Date
    Mar 20 2019
    AZ Member #
    465644
    Location
    Sydney

    Dashcam hardwire kit, which fuse did you tap for the ACC and Power wire?

    Hey everyone,

    Picking up my B8.5 S5 next Thursday and I'm planning to install my Viofo A129 Pro right away (currently hardwired in my A4)

    For those who have hardwired a 3 wire hardware kit to their S5, you must know that a 3 wire kit requires connecting a red wire to a fuse that provides constant power (even when engine turned off), and then we also need to connect the yellow wire (ACC) to a fuse that is not powered with ignition off. (this is what trigger the dahcam to switch automatically to parking mode)

    On my current A4, I tapped the cigarette lighter fuse for the ACC wire as it's not powered with the ignition off.

    However, I checked online the fuse diagram of the S5 and it seems like the cigarette lighter fuse is in the fuse box located in the trunk. The hardwire kit wires aren't long enough to go all the way to the trunk so that means that I will have to find another fuse to tap located in the instrument panel (driver side I guess)

    I'm equipped with a multimeter and I can test each fuse to identify an ACC and power fuses to tap but I thought I'd ask the community in case some of you already went through the process.

    Thanks
    Last edited by Arese; 04-06-2021 at 06:46 AM.

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