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How can I add a 2nd horn to a 2013 Prius C?

Discussion in 'Gen 3 Prius Accessories and Modifications' started by Brad W., Aug 9, 2018.

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  1. Brad W.

    Brad W. New Member

    Joined:
    Aug 9, 2018
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    Location:
    Charlotte, NC
    Vehicle:
    2013 Prius c
    Model:
    Two
    Team,

    Does anyone know of a good explanation (or better yet a video) of what needs to be done to add a 2nd horn to a 2013 Prius C? I've replaced the factory horn with a Fiamm Freeway Blaster Low Tone. I'd like to add the High Tone horn as well. I know that I will need to add a relay for the 2nd horn since the horn circuit is 10 amps and the max draw including both horns is 12 amps (e.g. 2 x 6 amps each). What I'd like to see is a clean, neat installation of the wiring, relay, fuse and where to connect for power. Thank you in advance!

    Best regards,
    Brad
     
  2. Thomas L Hark

    Thomas L Hark New Member

    Joined:
    Apr 12, 2019
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    Location:
    Williston, VT
    Vehicle:
    2013 Prius
    Model:
    Two
    you ever get answer? i want to do same...
     
  3. Daigi_

    Daigi_ Active Member

    Joined:
    Feb 20, 2017
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    Location:
    Hacienda Heights
    Vehicle:
    2012 Prius
    Model:
    IV
    I added a siren that I use as a second spam horn/inappropriately whistle at women/nice cars. I mounted my siren behind the front Toyota emblem. Very simple circuit, and mounted a NO (normally open) momentary switch in an accessory switch below my ignition button.

    My switch is pretty small, so I imagine that that you'd need a larger switch if you're going to use it often.

    I can take pics if interested later.