ground when armed, amp wire

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=104307
Printed Date: May 15, 2025 at 12:27 PM

Topic: ground when armed, amp wire

Posted By: urbanmindz
Subject: ground when armed, amp wire
Date Posted: April 27, 2008 at 2:37 PM

I am currently using a Carnetix power supply for my Carputer. The Carnetix power supply provides me a lead wire that turns on my amp when the car is turned on. If I remote start my car, the music starts playing.

What I would like to do is use the Ground When Armed from my alarm system to control a relay that will disable the Remote Turn On lead until I actually unarm my alarm system.

Can someone please provide me some information on what would be the best wiring option to accomplish this?

Thanks in advance.

Replies:

Posted By: i am an idiot
Date Posted: April 27, 2008 at 4:06 PM

In order to not have the relay energized the entire time the alarm is armed, The wire from your PC power supply, to terminals 30 and 86. The ground when armed output of your alarm to terminal 85. 87A needs to your amplifier remote lead. The only time that the relay will be pulling any current is when the truck is remote started and the alarm is armed.

Posted By: tedmond
Date Posted: April 27, 2008 at 4:13 PM

what car is the carputer in? looks like you powered on an acc that is for the radio. you can do what i am mentioned and tha will work.

Posted By: i am an idiot
Date Posted: April 27, 2008 at 4:36 PM

tedmond wrote:

you can do what i am mentioned and tha will work.

???

Posted By: urbanmindz
Date Posted: April 27, 2008 at 4:52 PM

??? ditto lol.. yea I was thinking of using the current from the Remote turn on to power the relay this way it will only be activated when the power supply and the ground when armed are both active.

Thank you for your help in confirming this for me. Just need the clarification.

By the way, I dont drive a truck :( I drive the extreme opposite. I drive a Yaris lol...

Thanks posted_image

Posted By: i am an idiot
Date Posted: April 27, 2008 at 5:01 PM

I feel like such an idiot sometime.

Posted By: urbanmindz
Date Posted: April 27, 2008 at 7:05 PM

LOLOL.... nice name by the way.. thanks again for your help