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Does the 2013 have the additional horn setup? If so can some kind soul send me a link so I can purchase it? Thanks fellas
 

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2013 does not have second horn connection. Purefjcruisers an trdparts4u both have the horn as well asany dealership. Easy wire in.
 

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This is what I did:
03-14-13: Second Horn (High Pitch) Installed = Drastic Improvement (Very Loud)!
Made a split jumper to connect the new horn and the original horn to the single OEM horn plug.
86510-60240 Horn Assy, High Pitch
90080-11545 Bolt, W/Washer

If you look at my build, you will see a pic of the location.
Right up front, opposite side of original.
Nice and loud, as it should be!!!!
 

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I've got the second horn connector on my 07, so I can't help you there, but you can go to any junkyard and pick up a Toyota horn for cheap with partial wiring harness, nut and everything. Mine ran a less than $10. I'm using a low pitch horn from a 93 Camry and it sounds identical to the stock low pitch horn. With two low pitch horns, I get a loud deep sound appropriate for the truck. Very pleased.
 

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you can buy any 500mz horn and just wire it in to the existing 400mz horn.
 

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Does the 2013 have the additional horn setup? If so can some kind soul send me a link so I can purchase it? Thanks fellas
Which Tri-State area are you from? You can have my original horn if you want it. You'll have to find the connector to go with it, but I'll be happy to give you my stock horn if you want it. I don't need it laying around :)


Sent from AutoGuide.com Free App
 

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I've got the second horn connector on my 07, so I can't help you there, but you can go to any junkyard and pick up a Toyota horn for cheap with partial wiring harness, nut and everything. Mine ran a less than $10. I'm using a low pitch horn from a 93 Camry and it sounds identical to the stock low pitch horn. With two low pitch horns, I get a loud deep sound appropriate for the truck. Very pleased.
Hello!
I also have the second horn connector. Did you just mount the second Toyota horn and make the factory connections with no modifications? Did you keep the OEM 10a fuse or upgrade it to 15a or 20a fuse? Was the single factory relay enough to handle both Toyota horns?
thank you!
 

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Also attached is the wiring for dual horn setup without using OEM. I made the wiring harness myself but you can buy one already made.
1119717
 

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Hello!
I also have the second horn connector. Did you just mount the second Toyota horn and make the factory connections with no modifications? Did you keep the OEM 10a fuse or upgrade it to 15a or 20a fuse? Was the single factory relay enough to handle both Toyota horns?
thank you!
I think I did what you describe. I just split the one signal (I didn’t have 2nd horn wiring) and sent it to both horns and grounded them separately. It sucks. The one OEM horn was louder.

As soon as I get some time and clear weather, I’m going to do what buckwheat diagrammed above.

BTW, as clarification for those with limited electrical experience, please consider that it’s generally a risky move to increase the size of fuses on OEM circuits. It’s best to assume that Toyota engineers designed the circuit to handle a certain amount of current and added a fuse rated just a bit less than that amount (10 amp fuse on a circuit that can handle 12 amps for example). If I come along and change to a 20 amp fuse, I’ve now put myself in a position where I can fry the circuit because it’s running a fuse that’s too large.

<steps off soapbox>

Dan
 

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Toyota absolutely sized the wires for the original fuse. Changing the fuse to a higher current one, running that new higher current through the circuit and not expecting an electrical fire is like unprotected sex with a hooker from Zimbabwe (hint: stupid risky).
 
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