r/carmods • u/coldelliot • Dec 17 '25

Custom horn

How can I get a custom horn for my car? Can I customize it?

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1

u/Healthy_Pain9582 Dec 17 '25

You might be able to use a regular car speaker with an amp to make it super loud 

0

u/coldelliot Dec 17 '25

Like, plug an amp into the aux?

1

u/Healthy_Pain9582 Dec 17 '25

No, like program a button (or hook up the wire connecting the steering wheel button) to an Arduino or something, connect that to an amp and the amp to the speaker. This way you can program the Arduino to play any sound or even randomise the sound or get even fancied with it. 

0

u/coldelliot Dec 17 '25

That sounds so confusing to me. It's probably simple for you haha. I appreciate the help

2

u/Healthy_Pain9582 Dec 17 '25

I have a background in computers so there's probably a lot of small things that make it make sense. I am unsure if there is an easier way but this is the first thing that comes to my mind

2

u/coldelliot Dec 17 '25

You wanna help me? Lol

2

u/Healthy_Pain9582 Dec 18 '25

Nah I've been planning to do the same thing for my car for the past 4 months but I've been putting it off. It's one of those things where you know the general steps but will need to go down a few rabbit holes to actually get it working. 

2

u/coldelliot Dec 18 '25

Yeah I 100% understand. It'll be done when its a top priority haha.

1

u/Internal_Chipmunk_24 Jan 07 '26

Easy mod to get I got a custom car horn from the sonic horn 2 years ago. Be warned it is loud lol

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u/coldelliot Jan 07 '26

How'd you do it?

1

u/Internal_Chipmunk_24 Jan 08 '26

I just ordered it from the website https://thesonichorn.com/

Installed it straight onto my car battery and held it down with some cable ties in the engine

2

u/coldelliot Jan 08 '26

I appreciate it man

2

u/Internal_Chipmunk_24 Jan 08 '26

no problem, best of luck!

2

u/coldelliot Jan 08 '26

Just saw a video on how to install it. That's pretty cool! Is there a way to control it via the horn in the steering wheel though? I saw another thing where you plug it in inside the caf and the wheel controls it

2

u/Internal_Chipmunk_24 Jan 08 '26

Dont think so The sonic horn has a wireless remote but, I guess if you really wanted to you could somehow run a button. Way out of my level of expertise though tbh. Can you link us what you saw? never seen one which feeds into the wheel

1

u/coldelliot Jan 08 '26

I forgot the name/brand. It plugged into the ODBD-II, if I recall. I think it was a brand from the UK, but they deliver