horn activation f 250

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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=94351
Printed Date: May 01, 2025 at 12:44 PM

Topic: horn activation f 250

Posted By: redlineowner1
Subject: horn activation f 250
Date Posted: May 29, 2007 at 5:07 PM

I'm trying to hook up and Aux. horn in a 2005 Ford F-250. The dark blue wire in the harness is 12v+ constant. I need a wire or way to only get a + when the vehicle horn is pressed to actuate the AUX. horn. I appreciate any help.

Replies:

Posted By: docphil
Date Posted: May 29, 2007 at 5:45 PM

There sould be 12 volts at the horn under the hood. If you want it under the dash you're gonna need a relay.

Posted By: redlineowner1
Date Posted: May 29, 2007 at 8:34 PM

Ok, I'll check that tomorrow and see. As long as its a momentary 12v+ that's what I need. Thanks.

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