Horn

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=8373
Printed Date: May 14, 2024 at 8:50 PM

Topic: Horn

Posted By: soonerfan
Subject: Horn
Date Posted: January 20, 2003 at 1:55 PM

I am trying to hook up my horn to sound whenever I hit the lock button on my remote. Problem is my starter/keyless remote unit has no output for it, so I wired up a relay to take the positive output from the door lock wire and output a negative to the horn. I get the horn to sound but its too loud. I introduced a trimmer into the mix thinking the added resistance would help quite the horn, No luck, either it sounds or it doesn't depending what resistance I have it set to. Anyone know how to get this to work? I only want the "chirp" when the doors lock. Any help would be appreciated.

Replies:

Posted By: Auto_Obsessions
Date Posted: January 20, 2003 at 4:58 PM

Is this unit you are trying to Install just a keyless entry or is it an alarm system? If it is an alarm system you can hook up a relay off of the siren wire or the parking light wire. If you have a parking light wire and you decide to use it you must use a diode to isolate the two or everytime you turn on the lights your horn would honk. Also if your parking light output from the system is positive you may need a relay to turn it to negative if your horn needs a negative pulse.

Posted By: soonerfan
Date Posted: January 20, 2003 at 7:17 PM

It is a remote starter/keyless entry, audiovox aa-rs5cs. I have it installed on a 2000 Chevy Blazer (no factory alarm). Like I said, I can get it to sound but its too loud. I just found another wire on the unit, says its a 300mA pulsed ground output, think I should try and connect this to my horn for the desired "chirp" or do I need to take another route?