Adding a new horn to the same harness - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 08-04-2014
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Adding a new horn to the same harness

I want to add another low tone horn to the existing wiring harness so I would be running three horns. Do you think there would be a problem doing this on the stock horn wiring harness and relay? I would guess a fuse would blow before any damage is done but I dont even want to risk it.

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Old 08-04-2014
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The simplest solution would be to add the third horn on a SPST relay. Mount in your choice of location. Run a fused 12v power lead to the relay terminal 30. Run another wire from terminal 87 to the new horn. Run a wire from terminal 85 and splice it into the existing factory horn power feed. Run a wire from terminal 86 to chassis ground.
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Old 08-04-2014
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Do you have a single note horn? If you do and want a double note, I'd just go for an F150/superduty horn. Its plug and play and sounds much better. I did this on both my trucks.
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Old 08-05-2014
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Quote:
Originally Posted by Rev View Post
The simplest solution would be to add the third horn on a SPST relay. Mount in your choice of location. Run a fused 12v power lead to the relay terminal 30. Run another wire from terminal 87 to the new horn. Run a wire from terminal 85 and splice it into the existing factory horn power feed. Run a wire from terminal 86 to chassis ground.
That sounds a lot more complex than just tapping into the existing harness lol.
Thanks for the reply!
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Old 08-05-2014
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Originally Posted by 99offroadrngr View Post
Do you have a single note horn? If you do and want a double note, I'd just go for an F150/superduty horn. Its plug and play and sounds much better. I did this on both my trucks.
I have a dual note horn. Is the superduty horn loud?
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Old 08-05-2014
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Horns take a bit of current to operate, so adding a third horn to an existing two horn circuit would be the reason Rev made the suggestion; a wise one.

I like the idea though of removing the existing horn(s) and replacing with the SuperDuty one(s).
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Old 08-05-2014
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Originally Posted by dogfish246 View Post
I have a dual note horn. Is the superduty horn loud?
Ah ok. My old ranger had a dual note and I replaced it with a SuperDuty one but I don't remember if it was louder. I did it on my current truck and it was night and day difference but it had a baby single note
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Old 08-05-2014
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just run the 3 horns off of a relay

use the factory wires to trigger the relay
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Old 01-15-2015
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What year superduty horn works with the Ranger harness? I have a single note 2011 and it sounds terrible. Especially after having a 2004 dual note.
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Old 01-15-2015
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Originally Posted by Hillyard View Post
What year superduty horn works with the Ranger harness? I have a single note 2011 and it sounds terrible. Especially after having a 2004 dual note.
I'm not positive. I pulled the one for my 2004 off of a 04-07 F150 and the one on the 99 came from a 98 superduty
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