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Prius horn upgrade wiring diagram

Discussion in 'Gen 3 Prius Accessories and Modifications' started by sr64olds, Sep 3, 2018.

  1. sr64olds

    sr64olds Junior Member

    Joined:
    Apr 11, 2018
    3
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    Location:
    Ventura County
    Vehicle:
    2014 Prius
    Model:
    Two
    Recently upgraded my 2014 Prius with a pair of Hella horns. I did a lot of Internet search for a viable wiring diagram. Could not locate a single working diagram. Decided to rely on my own engineering knowledge, though aeronautical, to come up with one. Diagram posted here works absolutely fine. Good luck on your project!
    Prius horn upgrade wiring diagram.jpg Labeled photo 1.jpg
     
    #1 sr64olds, Sep 3, 2018
    Roccobro, jerrymildred, Thomas L Hark and 4 others like this.
  2. blairsie

    blairsie Junior Member

    Joined:
    May 8, 2019
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    Location:
    greensboro nc
    Vehicle:
    2010 Prius
    Model:
    N/A
    wheres that relay?
     
    #2 blairsie, Jun 7, 2019
  3. Wooster

    Wooster Junior Member

    Joined:
    Feb 23, 2010
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    Location:
    Surrey - UK
    Vehicle:
    Other Hybrid
    Model:
    i-Tech

    Are you still following this? Just FYI: These horns are designed for continuous use. Typically used by the emergency services in Germany, for the bee-par, bee-par, bee-par ('get outa my way') sirens. Designed for a narrow but far reaching noise envelope. Excellent horns.
     
    #3 Wooster, Jun 12, 2019
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