Where does blue and yellow hook too?

Your factory horn wires yellow is the hot wire

How do I wire in a separate push button? I can’t find information anywhere thanks.

If you're looking to bypass the existing horn & use it on push button only, this is what to do: Get rid of all the electric components. Wire through a fuse from positive + of battery to button +. Wire from - button to + of compressor of horn. Wire from - of compressor to negative - of battery or frame.

Could i install this under the hood of my truck or would it have to be put on the exterior?

Yes. I have a Nissan Hardbody and I have my under the hood. Just face the horn towards the front and your good.

Black Dual Air Horn Black Compressor

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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€ 135.11

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚨 Make Your Presence Impossible to Ignore!

RISK FREE UPGRADE - Backed by a 30-day money-back guarantee, 1-year warranty, and lifetime tech support for total peace of mind.
BUILT TO BRAVE THE ELEMENTS - Weather-resistant zinc alloy trumpet and all-copper coil guarantee long-lasting, rugged performance.
PREMIUM AIR COMPRESSOR TECH - Bigger coil and high-quality materials deliver crystal-clear, piercing alerts that cut through noise.
UNIVERSAL 12 V COMPATIBILITY - Fits seamlessly on cars, trucks, boats, motorcycles, and more with easy universal mounting hardware.
COMMAND ATTENTION WITH 150 D B POWER - Unmatched loudness ensures you're heard in any environment, boosting your road safety instantly.

The 150dB Super Loud Dual Trumpet Air Horn Kit by HK is a robust, weather-resistant signaling system designed for 12V vehicles including trucks, boats, and motorcycles. Featuring an upgraded compressor with a larger coil and chrome-plated zinc alloy trumpets, it delivers a powerful, clear warning sound that enhances safety and commands attention on the road. Easy to install with universal mounting hardware, it comes with a 30-day money-back guarantee, 1-year warranty, and lifetime technical support.

Specifications

ASIN	B07YXV69KV
Automotive Fit Type	Universal Fit
Best Sellers Rank	#16,450 in Automotive ( See Top 100 in Automotive ) #10 in Air Horns
Brand	HK
Brand Name	HK
Color	Black
Compatible with Vehicle Type	Bicycle, Bus, Motorcycle, Passenger Car, Truck, Van, Watercraft
Customer Reviews	4.2 out of 5 stars 2,682 Reviews
Fit Type	Universal Fit
Included Components	1 X Air Horn, 1 X Compressor, 1 X Air Hose, 1 X Set of Mounting Hardware, 1 X Relay, 1 X Wired Relay Plug, 1 X Fuse, 1 X Inline Fuse Holder
Manufacturer	HK
Manufacturer Part Number	B07YXV69KV
Manufacturer Warranty Description	2 year
Material	Zinc Alloy
Material Type	Zinc Alloy
Model Number	B07YXV69KV
Noise Level	150 db
Number of Items	1
Number of Packs	1
Style	Safety
Style Name	Safety
Voltage	12 volts

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