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magnetic reed switch to negative trigger?

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=104158
Printed Date: May 13, 2025 at 3:34 PM


Topic: magnetic reed switch to negative trigger?

Posted By: wjbarton
Subject: magnetic reed switch to negative trigger?
Date Posted: April 21, 2008 at 9:35 AM

Hi, I want to put a magnetic reed switch on my 2002 Ford F-150 bed cover - it's a tonneau (however that's spelled).  My alarm is a Viper 560xv 1-way remote start.  From what I've read on here a reed switch is the way to go.

I'm already using the negative trigger (green from Viper) for my doors by connecting that directly to the pink/light green wire at my headlight switch.  I do have an unused violet (+) positive zone 3 door trigger wire on my Viper, plus an unused blue (-) negative "multiplexed input, zone 4".

Question 1: To wire the reed switch, do I just connect one of the 2 reed switch wires to the blue (-) multiplexed input on my Viper, and the 2nd wire from the reed switch to ground?  Any relays needed?

Question 2: What's a good reed switch, and can I buy one at a major retailer, like a Circuit City or a Radio Shack?

Thanks!




Replies:

Posted By: wjbarton
Date Posted: April 21, 2008 at 10:21 AM
I ordered a couple DEI 8601  magentic reed switches, one for the bed cover and one maybe for the future.  For the bed cover switch, can I just hook that up to my blue Viper wire and to ground?



Posted By: mikvot
Date Posted: April 21, 2008 at 12:32 PM
Yes, one wire to ground, the other to the blue on the alarm.

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