2016+ Toyota Tacoma. You've got your horn kit assembled and you're almost ready to make some noise. If you're having trouble finding the OEM wire to tap into, this article serves to help you out. Check out the schematic below. If you're not familiar

2016+ Toyota TacomaYou&apos;ve got your horn kit assembled and you&apos;re almost ready to make some noise. If you&apos;re having trouble finding the OEM wire to tap into, this article serves to help you out. Check out the schematic below. If you&apos;re not familiar with these, don&apos;t worry, we&apos;ve got you covered.<img src="https://uploads.gorgias.io/mJQz875pXo2adpn4/upload_2019-3-18_14-35-56-6153726d-83e1-4b11-a9ca-d89e1198e7f9.jpg" style="width: 681px;" class="fr-fic fr-dib">Getting StartedThis guide will require you to splice or tap into a specific wire for the horn. Looking at the diagram above, the horn wire for your vehicle is grey.&#xA0;Locate the OEM horn under the hood and look for a one-wire connector going into the horn. The wires may be wrapped an an electrical tape of some sort. Peel the tape back to reveal the two leads. Look for the yellow wire.&#xA0;Use the included T-tap connector to splice a new 18-gauge lead off the grey horn wire. If you&apos;re not sure about how to do this, please see the following video.<iframe width="100%" src="https://www.youtube.com/embed/dpDAzi7fYY8??t=5&amp;wmode=opaque&amp;rel=0" frameborder="0" allowfullscreen class="fr-draggable"></iframe>Once you&apos;ve got your new lead tapped off the OEM horn, route it back our train horn valve. You can use a toggle switch between the valve and OEM horn to turn the train horn on and off at the wheel. With the switch off, the wheel just honks the OEM horn. When you flip the switch on, the wheel honks the train horn along with the stock horn.

Connecting the Train Horns to the OEM Horn (2016+ Tacoma)

2007 Toyota FJ Cruiser. You've got your horn kit assembled and you're almost ready to make some noise. If you're having trouble finding the OEM wire to tap into, this article serves to help you out. Check out the schematic below. If you're not famili

2007 Toyota FJ CruiserYou&apos;ve got your horn kit assembled and you&apos;re almost ready to make some noise. If you&apos;re having trouble finding the OEM wire to tap into, this article serves to help you out. Check out the schematic below. If you&apos;re not familiar with these, don&apos;t worry, we&apos;ve got you covered.<img src="https://uploads.gorgias.io/mJQz875pXo2adpn4/FJCruiser-7ea88dd1-722a-45a3-b320-1bd1c323a33c.jpg" style="width: 683px;" class="fr-fic fr-dib">Getting StartedThis guide will require you to splice or tap into a specific wire for the horn. Looking at the diagram above, the horn wire for your vehicle is grey/black.&#xA0;Locate the OEM horn under the hood and look for a connector going into the horn. The wires may be wrapped an an electrical tape of some sort. Peel the tape back to reveal the two leads. Look for the grey/black wire.Use the included T-tap connector to splice a new 18-gauge lead off the grey horn wire. If you&apos;re not sure about how to do this, please see the following video.<iframe width="100%" src="https://www.youtube.com/embed/dpDAzi7fYY8??t=5&amp;wmode=opaque&amp;rel=0" frameborder="0" allowfullscreen class="fr-draggable"></iframe>Once you&apos;ve got your new lead tapped off the OEM horn, route it back our train horn valve. You can use a toggle switch between the valve and OEM horn to turn the train horn on and off at the wheel. With the switch off, the wheel just honks the OEM horn. When you flip the switch on, the wheel honks the train horn along with the stock horn.

Connecting the Train Horns to the OEM Horn (2007 FJ Cruiser)

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Connecting the Train Horns to the OEM Horn (2004-2014 Ford F150)

Connecting the Train Horns to the OEM Horn (2015-2017 Ford F150)

Connecting the Train Horns to the OEM Horn (2021- Ford F150)

Connecting the Train Horns to the OEM Horn (2018-2020 Ford F150)

Connecting the Train Horns to the OEM Horn (2017+ Ford F250/350)

Connecting the Train Horns to the OEM Horn (2019-2021 Ford Ranger)

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Connecting the Train Horns to the OEM Horn (2015-2020 GM/Chevy Truck/SUV)

Connecting the Train Horns to the OEM Horn (2014 Chevy Silverado)

Connecting the Train Horns to the OEM Horn (2001-2013 Chevy Silverado)

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Wiring up the 2MC/127H/228H

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Toggle switch between two horns

Test a 40A Relay