Thanks for the write-up

Btw, just copy the URL from your pic (right-click on it in the web page when you're viewing it and go to properties) and insert using the icon in the editor.

Like this...
http://mazda3revolution.com/forums/.../forums/members/glennk-albums-2010-mazda-3-picture432-step8-2-final-product.jpg

Becomes this...

 

Big thanks to you Derrick! Changes made!

 

So...forgive me if I'm being extra-dense...did you simply add a second horn to the factory one, or did you replace both the factory one and add a second one with a twin set?

 

I added a second horn to the factory one. No, you are not "extra-dense"...just asking a good question.

 

Thats a really nice write up. I'm NOT a car person (I'm a computer tech) and honestly probably couldn't change my oil (hopefully that's an exaggeration). With these instructions i'm totally confident i'll be able to get this working by myself!

Did you add on just the low-tone or a second high-tone? Also, if i wanted to replace the factory horn as well as add in a second horn would i need to do anything different besides removing the factory horn? Would there be any concerns with the wiring/voltages or is the factory horn a 12v as well?

Thanks again!

 

Low-tone Freeway Blaster added to the stock high tone unit. Both are made by FIAMM. No other changes are required if you want to replace the factory horn and add a second. Remember, the fuse is limited to 15A. Don't exceed this or you will have to make more electrical changes.

 

Just finished this mod a few minutes ago. I have a few comments.

• You also need a 8mm socket to remove the splash guard. The 10mm is for the horn.
• I do not recommend removing the bracket. I thought I'd give it a try, but it was just too much of a PITA to reinstall with the horns on it. I took the horns off, re-mounted the bracket, and finished it.
• Overall, not too bad, but there is very limited space to work with. I'd say it's better if you drive the car up on ramps or put the front end on stands. I dunno. Either you're a contorsionist or I did something wrong, lol.
• Use this as an opportunity to get a good set of crimpers. I've used the cheap ones before and they will straight-up destroy connections (notice the difference in my connections and the ones in the other pic). Good crimpers will not and they last forever. I prefer the simple ones like this: - Harbor Freight Tools - Quality Tools at the Lowest Prices

Also, here's a pic for you to replace the one from the other site. I'd rather keep this a M3R article

Good mod. I'm happy with the results. It sounds like a real car now!

 

you wouldn't have a before and after video of how it sounds, would you?

 

No, I sure don't. In listening to other "horn sounds" on YouTube, they do not compare to being in person. Something about the mic used.

 

Excellent! Thanks Derrick! I have put your pic up in place. There are several ways to complete this update (attached other options at the end of my original post). This is an annoying but necessary upgrade. Most folks don't take the OEM horn serious. I went out this evening had my first opportunity to put my new combo to use. Needless to say, it definitely satisfied my needs.

 

Horns are a very low-cost and worthwhile upgrade. I put dual-note Hellas on my P5. I just couldn't stand being cut off by everyone with my single note "squeaker" horn. At least the new 3s have "trumpet" type horns, rather than just the buzzing disc like my P5 and the older imports had.

 

Something I didn't do was use the electrical tape. I think I'm going to re-do my wiring someday and use fully insulated connectors like these: 1/4" Fully Insulated Quick Disconnects (10-Pack) - RadioShack.com

I have some. I just didn't think to use them. If not those. I'll throw some heatshrink over the other ones.

 

Just bought the low tone for $15 and am making my wire splicer.

One thing I'm confused about is the jumper.

Isn't that unnecessary? Doesn't the fact that both horns have their main bolt connector connected to the harness (which is connected to the chassis) sufficient? Or is it just a precaution in case the connection between two harnesses cease to conduct?

 

It grounds through the chassis. The splitter is for power. The male end goes to the car's stock wiring. Each of the female ends go to a horn's + terminal.

 

There isn't an internal grounding wire on the secondary horn like the first one. That's why the wire is required. It is a bit of an annoyance....especially holding everything together. :cursing 1:

 

Yeah, it surprised me as well. However, it means you could mount it to just about anything. I'm sure that's why it's made that way.

 

Thanks for the guide and the help all.

It sounds like a real horn now.

 

Grats on the mod. I think everyone should do this one.

 

:clap:

 

Hey glennk do you have a place you would recommend buying the horn from? Thanks!

 

I second Derrick's comment...local auto store. I went to O'Reillys. Oh yeah, you can get all of the other parts there too (wiring, etc).

 

I'm not Glenn, but I'll say any local auto parts store. It's not worth paying shipping from an online retailer unless you can get it for under $15-16 total. I got mine at O'Reily's.

 

I concur. I've seen the FIAMM low tone Highway Blaster at both O'Reillys and AutoZone for about 15 bucks.

 

Thanks guys!!!! I'll check out the stores this weekend to see if the have them.

 

a friend of mine in highschool installed an air horn in his 1977 ford grenada and it used to scare the living shit out of people lol ahh the good old days...

 

Well, I got the last horn they had...there must be a lot of new Mazda 3 owners around here Hopefully along with everthing else I want ot do on the car this weekend I'll get it installed.

 

Happy upgrading! What updates are you making?

 

I know this ones a late reply, but I want to do the horn and work on my third brake. I am also wanting to deadge/ rebadge the car and put on some black chrome emblems.....unfortunately I 'm waiting on the extra set I ordered to arrive before I can send them to the chromer.

 

here is another option for you folks: Hella Supertone

Enjoy! (method of installation is similar to the OP)

 

Thanks Jade....did you install 2 for a reason or doe they come 2 too a pack?

 

it comes in 2.

 

Holy mother of pearl! How many decibels do these suckers put out?

 

According to the Griot's catalog I read, I believe its 118 decibels :shocked016: I have been dying to use that one.

 

$60 is a rather expensive route to take for a horn, imo. They do sound nice though.