How to Install Aftermarket Horns in Your Vehicle

Today I installed some aftermarket horns on a '83 El Camino. In this video I explain how to install them yourself with a simple wiring diagram and walk you through the installation. The same basic steps apply to any installation.

The horns used in this installation:
Harbor Freight Part# 99911

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16ga Primary Wire:
In-line Fuse Holder:
12V Momentary Switch:
Universal 12V 30A 5 Pin Relay:
Wire Terminal Kit:
Assorted Fuse Kit:
Heat Shrink Tubing:
T-handle Reamer:
Klein Tools Wire Crimper:
Irwin Automatic Wire Stripper:
Neiko Step Drill Bit 3pc:

Due to factors beyond the control of NutsAndBoltsAuto, it cannot guarantee against unauthorized modifications or improper use of this information. NutsAndBoltsAuto assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. No information contained in this video shall create a guarantee, expressed or implied, of a particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not NutsAndBoltsAuto

[ruthkamo]

Explaining using both the diagram and exact wiring make it much easier to understand. Thank you very much. Now I can wire my truck's horn.. 👍

[randallmontejano]

Working around wiring is my weakness yet I can read it. But this install gave me confidence to translate wiring from diagram to the actual thing. Thank you so much for uploading great content everything from Ford to the good ol Chevy 😎

[emmehall]

I just installed a horn in my off road Miata with this video. It's so great and easy to follow. THANK YOU!!!!

[artvr]

This is the absolute best video with the best diagram that I have seen, after watching many many like this. Thanks. Too bad it took a year to find it.

[jetsgo]

Great video. Much more clear and to the point compared to other videos I could find

[srd]

Very helpful and excellent drawing with a good explanation. Thank you.

[lavapix]

That was perfect. I already knew how to do it but very well explained for those who were unsure. You can also get wireless buttons. I'll be trying one soon.

[bravemind]

Thank you sir, for an excellent, concise and clear explanation.
It helped me over not only to understand how to install a horn but also some important basic car electricity concepts plus the concept of the relay. I also learned some simple but, important techniques in doing the job perfectly.
Thank you very much again. Keep on the good and concise work.
Best regards

[patrickmckiernan]

Good deal! Exactly what I was looking for.

[LachieMac]

That's the best installation explanation I've seen yet!
Cheers Mate!

[MrDreis]

Very good video Sir. Easy to follow, easy to understand.

[Tom-blrh]

Excellent
Tell ‘‘em what you’re going to tell ‘em
Tell ‘em
Tell ‘em what ya told em
Thanks

[S-Kidz]

Very nice mr sir. That thumbs up after it worked was epic 👌🏼

[westwind]

Very clearly explained, I am taking auto electrical diagnostic and am looking on YouTube for video. Thanks.

[grabbingyourattentionpodcast]

Great Quality content on every level Thanks

[markalmeida]

Excellent vid, a ``BIG`` thank my car Vauxhall zafira b, cim module issues, UK

[jr]

Pin 85 can i use the old connection from the single horn and then ground the opposite?

[danwalsh]

I realize this is over a year old but hopefully you see you know how to add an additional horn button to an exesting 12v horn? Thank you in advance

[zacharycarter]

Good job. You used the non-insulated crimp part of the tool on an insulated crimp, both ring and butt splice. If you'd used the back side that said "insu" you wouldn't have risked piercing the insulation and wouldn't need the heat shrink.

[innocentmadzivanyika]

Thank you so much bro but i didn't get the switch part clearly. Right so we have power coming from the relay pin 85 to the positive of the switch okay. So where is the other pin on the switch connected to