What you will need: Replacment Horn, Knowledge of how to remove Front Bumper. Phillips Head Screwdriver, Flathead Screwdriver (or prying tool), Socket Wrench, 10mm Socket
Time Needed: 30 mins. 15 mins with bumper removal knowledge.
Are you frustrated with the wimpy horn on your car? Sounds too wussy for Rush Hour traffic? Well here's a relatively Cheap and easy upgrade you can perform.
Alright, as long as you know how to remove the front bumper (check out my other How-To for the bumper) this will be a relatively quick swap of the horn. Begin by removing the bumper, the horn is located on the driver's side behind the lower bumper.
Here's the horn I decided to replace my stock one with. It's a FIAMM Freeway Blaster Series Horn. Simulates a Big Rig Sound emitting a 132 decibel blast.
*NOTE* This is simply the horn I used, you can of course choose whatever horn you'd like, even air horns (although there'll be a few more steps to do to get those working, eg. relay, compressor etc.), just make sure your horn sounds when it gets 12v power to it. Also remember to check the amperage draw of the horn, to make sure your fuse can take it.
Alright you should have the OEM horn unbolted off the mount arm now. You'll notice a mini-harness plug that powers the horn which is grounded through the mount bracket itself.
Unless you somehow managed to find a horn that would directly plug into the harness, you'll have to cut the end off the OEM.
Next for my particular horn, I crimped on a connecter to the end of the wire I just snipped. This will allow me to connect this to my FIAMM horn.
Here's the OEM horn. It Puts out a wimpy 110 decibels. Seeing that humans can only hear up to 120 dbs, it was never meant to deafen the guy who just cut you off. My FIAMM at 132 should do a great job of that.
Here I have my aftermarket horn connected and mounted. It hooks up the same way, the wire I had connected a terminal to provides the 12v to the horn, whilst it is grounded through the mounting bracket. So that's it folks! Reverse the process and put back on your bumper (be sure to test before) and you're set!
*NOTE* you'll notice that I used the mounting bracket from the aftermarket horn, you may find that your horn fits better with the OEM mount bracket.
Alright here on the passenger side you'll notice there's room for a second horn. Once again I purchased a second FIAMM Freeway Blaster Series Horn, This time the High Note Instead of the Low Note
*note* - you may find that both horns mount better backwards (for these particular horns) the pictures show how you would normally mount them.
Alright Here's the Pic of the High Note horn mounted in the open space on the passenger side. This will be the side that provides the most room, especially if you intend on installing an air horn.
You'll notice there is no windshield washer fluid tank on this side and there are already threaded holes for you to simply bolt a compressor for the air horn to. However you may also notice that you will have no room if you have a Cold Air Intake Installed.
Here is both horns mounted, High Note On the Passenger side, whilst the low note I have mounted on the right. You'll notice that I had to wire the second horn under and across the radiator.
That's it folks! Have Fun, and by the way...i'm running both horns on without the need of replacing the stock fuse.