OTO STYLE HORN Installation Instructions - PIAA

For installation type C and D: Install an aftermarket relay unit if vehicle is not equipped with a factory horn relay . Non usage of a relay unit may cause ...
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OTO STYLE HORN Installation Instructions
Thank you for purchasing PIAA OTO (  ) STYLE HORN
Please read this entire manual before installation and use. Depending on vehicle, installation may require additional wiring connectors
Which are not included in this product but commonly available.
1. Do not remove or alter the screw or the bracket on the back side of the horn. Doing so may alter or disable the performance.
2. Install the horn to an angle the horn's opening section faces down. 3. Do not install and wire the PIAA OTO (  ) STYLE HORN so it will work together with the factory
installed horn. Doing so may overload the circuit or may exceed local horn noise regulations. 4. Install PIAA OTO (  ) STYLE HORN to a location that will not get direct water spray or dust. 5. Install PIAA OTO (  ) STYLE HORN to a location that is away from hot engine components. 6. Do not paint or apply any type on chrome painting or powder coating to PIAA OTO  STYLE
HORN. Doing so may alter the tone or function of the horn.
DO NOT REMOVE!

The nut can be loosened to rotate and adjust the bracket position. The bolt and nut is rust-proof coated. Coating will be less effective once the nut is loosened.

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KIT CONTENTS
 Horn (A/part  )

 Please make sure the correct parts are included in kit.

 Horn (B/part  )

 Sticker (part  )

 For installation type C and D: Install an aftermarket relay unit if vehicle is not equipped with a factory horn relay . Non usage of a relay unit may cause malfunction to vehicle's electric power steering system and may cause an accident. Relay unit is not necessary for Installation type A and B.

INSTALLATION
Locate the factory horn and determine what type of installation is required. There are 4 installation Types (A, B, C, and D). Refer to below and determine which one fits to your application. When mounting the PIAA OTO (  ) STYLE HORN, mount them to a sturdy location with minimal vibration. Use a suitable fastener of 8mm (5/16").
A. 2 factory horns installed. Each horn has 2 connectors.

 Remove both connectors from factory horn's terminal. Replace factory horn to PIAA OTO  STYLE

HORN and reconnect each connectors.

Terminal

Factory horn

Terminal

Factory horn

PIAA OTO(  ) STYLE HORN (A/part  )

Terminal PIAA OTO(  ) STYLE HORN (A/part  )

Terminal
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B. 2 factory horns installed. Each horn has 1 connector.

 Remove connector from factory horn. Convert the factory horn's terminal to a flat blade tab female

terminal. Connect the converted terminal to the upper terminal of PIAA OTO (  ) STYLE HORN.

Connect the lower terminal of PIAA OTO (  ) STYLE HORN to vehicle's chases ground (-). (Body earthing)

 Wires earthing is not included in kit.

Connector

Factory horn

Connector

Factory horn

Wire for body earthing

Convert to flat blade tab female terminal

Convert to flat blade tab female terminal

PIAA OTO(  ) STYLE HORN (A/part  )

Body earthing

PIAA OTO(  ) STYLE HORN (A/part  )

Wire for body earthing
Body earthing

C. 1 factory horn installed. Factory horn has 1 connector.
 Remove connector from factory horn. Use an electro-tap to divide vehicle's wire to 2 wires. Convert the factory horn's terminal to a flat blade tab female terminal. Connect the converted terminal to the upper terminal of PIAA OTO (  ) STYLE HORN. Connect the lower terminal of PIAA OTO (  ) STYLE HORN to vehicle's chases ground (-). (Body earthing)  electro-tap, Wires for earthing and extension are not included in kit.

Factory wire

Factory connector

Factory horn

Electro-tap

Extension wire

Convert to flat blade tab female terminal

PIAA OTO(  ) STYLE HORN (A/part  )

Wire for body earthing
Body earthing
PIAA OTO(  ) STYLE HORN (A/part  )

Wire for body earthing
Body earthing
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D. 1 factory horn installed. Factory horn has 2 connectors.

 Remove connector from factory horn. Use an electro-tap to divide vehicle's wire to 2 wires. Reconnect each connectors.  electro-tap, extra wires are not included in kit.

Factory wire

Terminal

Factory horn

Electro-tap

PIAA OTO(  ) STYLE HORN (A/part  )

PIAA OTO(  ) STYLE HORN (A/part  )

Extra wire

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