Louder Horn
#1
Louder Horn
I want to add a louder horn to my wife's 2005 civic. I want to leave the existing horn as is and just add a relay to the existing circuit and run directly off of the battery. I don't have a wiring schematic or diagram to show where I can tap into the existing horn wiring? Can anyone help or direct me to a site where I could find a wiring schematic?
Joe
Joe
#2
I just did this to my wife's 2003 pilot. In 2003 the horns (there are two -a high and low) look like civic horns (the small metal disc). In 2004 they upgraded to the plastic "sea shell" looking horns. I simply replaced the wimpy horn with the beefier one from a 04 pilot.
Couldn't you just replace existing horn with an aftermarket louder one? Is there a reason you want to add a horn instead of just replacing existing? I'll try and find a wiring schematic for you to be able to tap off existing horn relay like your post requests...
Couldn't you just replace existing horn with an aftermarket louder one? Is there a reason you want to add a horn instead of just replacing existing? I'll try and find a wiring schematic for you to be able to tap off existing horn relay like your post requests...
#3
Thanks for the info Philip. First of all, the horn is located behind the front bumper. Sometimes aftermarket horns draw more current than the factory. I don't want to overload the fuse or wiring. If I can find the wire feeding the factory horn, I will tap into that wire and trigger a relay. Then I will take a heavy gauge wire (14 or 12) from the battery via a fuse and fire the new horn.
Joe
Joe
#6
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Thanks for the info Philip. First of all, the horn is located behind the front bumper. Sometimes aftermarket horns draw more current than the factory. I don't want to overload the fuse or wiring. If I can find the wire feeding the factory horn, I will tap into that wire and trigger a relay. Then I will take a heavy gauge wire (14 or 12) from the battery via a fuse and fire the new horn.
Joe
Joe
So for example if your new horn draws 5 amps, fuse it at 7.5 amps and 20ga wire will suffice.
Reference material:
(Copper wire in open air for chassis wiring - IE; Not in a conduit)
22ga - 5.0A
20ga - 7.5A
18ga - 10A
16ga - 13A
14ga - 17A
12ga - 23A
10ga - 33A
These numbers are a little conservative so dont worry if you are near the edge.
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