91jeepster
NAXJA Forum User
- Location
- Minnesota
I jusy got an air horn for my 91 XJ, does anyone have clear instructions on installation, or should I just hook it up to a momentary switch?
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Air Horn Install
- Thread starter 91jeepster
- Start date
comanche91
NAXJA Forum User
- Location
- Sweet Home Alabama
Yes, a momentary contact horn switch is fine, but what is the amp draw of the horn? It probably will require running it thru a relay, as in all higher amp draw devices. Even the puny XJ stock horn(s) use a relay.
toplessxj89
NAXJA Forum User
- Location
- south jersey
i would hook it up to a string u can pull above u r head
mudslinger4x4
NAXJA Forum User
- Location
- Connecticut
i was actually wonderin this same question. i was hopin to just pull out the old horn and run the wiring to the new horn. would that work?
iwannadie
NAXJA Forum User
- Location
- Gilbert, Az
Where does the air come from? They use a compressor I thought and youd need electricity to power the compressor...
dan302492
NAXJA Forum User
- Location
- auburn washington
i did that and it worked well... untill my the relay gave up from blowing the horn trying to get the water out of it, no more air horn for me :tears:
cherokee chuck
NAXJA Forum User
- Location
- freeland,wa usa
party1:Use the original horn wiring to run the new hd horn relay that you will need. A horn wire is just a momentary ground, it doesn't have any power in it. A stock horn relay will fry the first time you really lay on the horn. Hella & Fiaam air horn kits used to come with relays but the cheapo horns don't usually come with one.
91jeepster
NAXJA Forum User
- Location
- Minnesota
My kit came with a relay, but I tried doing their diagram and it just blew the fuse I had. The relay has four prongs and says to use a 20 Amp fuse. There were two different wiring diagrams it came with, and I don't know what to use. Can anyone specifically tell me what wires to run to what, and can I use the positive connection from the old horn to get to the battery? Right now I just have the positive prong on the compressor hooked up the the positive wire that was attatched to the old horn, and the ground wire going to the old horn mount.
91jeepster
NAXJA Forum User
- Location
- Minnesota
How do I get to the old horn switch? Is it just the wire that connected to the old horn. And how should I run it to the battery with a fuse, is there an open spot somewhere? Thanks for the fast replies.
Take the wire that ran to your old horn and run it to terminal 86. You can splice in a new section of wire if needed.
Terminals 85 and 86 can be reversed and it will cause no damage.
ALWAYS use fuses or circuit breakers when wiring anything in. As far as the open, thats basically what the realy is. The purpose of a relay is to control a large voltage or amperage with a small voltage or amperage
Hope this helps!
Terminals 85 and 86 can be reversed and it will cause no damage.
ALWAYS use fuses or circuit breakers when wiring anything in. As far as the open, thats basically what the realy is. The purpose of a relay is to control a large voltage or amperage with a small voltage or amperage
Hope this helps!
91jeepster
NAXJA Forum User
- Location
- Minnesota
Alright, now I guess what I was asking was how should I connect it to the battery, is there a place in the fuse box or how do I do this? Thanks again.
91jeepster
NAXJA Forum User
- Location
- Minnesota
I'm guessing going to the positive terminal would be easiest, but is there any special way to make the connection. Thanks for all your help.
There is no real special way. Just make sure to use a terminal of some sort. Don't just smash your wire in there. If you do that, you will corrode your horn wire, and mess up the starting cable. In short your Jeep won't start one day.
What part of MN are you in?
I'll PM you my number if you have more questions.
What part of MN are you in?
I'll PM you my number if you have more questions.
91jeepster
NAXJA Forum User
- Location
- Minnesota
South suburbs of Twin Cities, I got it all done, thanks a bunch for your help:yelclap:
