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’06 ford f350 horn

Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=127800
Printed Date: July 15, 2025 at 9:11 PM


Topic: ’06 ford f350 horn

Posted By: dadmoonbunny
Subject: ’06 ford f350 horn
Date Posted: July 03, 2011 at 12:30 AM

want to add a set of air horns. need wiring diagram for the horn circuit. 2006 F350 6.0 turbo diesel 4x4 crew cab.



Replies:

Posted By: howie ll
Date Posted: July 03, 2011 at 4:14 AM
1)Is there an existent horn relay, usually in an under hood fuse or relay box?
Upgrade it's fuse (usually also adjacent)to 20 amps and tap the relay output wire.
That's one method:-
2) If two wires coming from each horn, either one will be at 12Volts constantly or with ignition on, the other will go to ground when you press the horn.
Or more likely, one wire will be constantly grounded and the other will go to 12V+ when you press the horn.
In the first case see diagram:-
7F8_relay_1.bmp
In the second case tap the wire that goes to 12V+ on pressing the horn.

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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.


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