Radio faceplate as kill switch?

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=17202
Printed Date: July 21, 2025 at 3:13 PM

Topic: Radio faceplate as kill switch?

Posted By: 87gnblackdemon
Subject: Radio faceplate as kill switch?
Date Posted: August 05, 2003 at 5:59 PM

I know how to wire the relay to make this work, but I have a few questions.

I installed a Python 3000ESP in the car, and I installed a relay in between her starter wire so when armed the car won't start. Now to do the radio faceplate idea, do I:

Install another relay?
Use the alarm relay?
If I use another relay, can I hook the two relays together? or should their wires not touch?

Replies:

Posted By: Velocity Motors
Date Posted: August 06, 2003 at 12:46 AM

I would install another relay ( triggered by the face plate ) but have it disable the ignition wire instead of being redundant on the starter wire.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: 87gnblackdemon
Date Posted: August 06, 2003 at 4:30 AM

I would hook it up to the igniton wire the same way I would to the starter wire?

Heres what my info tells me to do.

pin 85- ground

pin86-power antenea wire on radio

pin 30-one side of starter wire

pin 87- other side of starter wire.

Except I'll substitute the ignition wire for the starter wire like you said, correct?

I've got a few people over at sounddomain.com teling me I can't have my radio faceplate act as a kill switch. R they wrong?

Posted By: Velocity Motors
Date Posted: August 06, 2003 at 8:28 AM

Anything is possible and I remember another member from this forum did the same thing on his deck last year and it worked for him. Here is the link to it: https://www.the12volt.com/installbay/forum_posts.asp?tid=1488&KW=radio+kill+switch&PN=0&tpn=2

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: JWorm
Date Posted: August 06, 2003 at 6:10 PM

I just answered you over at SD saying its possible....you might have to rewire your radio from acc to ignition.

DON'T use the ignition wire. If you do, try this trick: Get going about 80 down the highway and tell your friend to remove your faceplate (or turn off the radio). Let me know what happens :)

Posted By: kenmci
Date Posted: August 06, 2003 at 10:08 PM

I just have one question, how will the radio turn on if you have broken the ignition wire, unless your radio is powered from a different source it will not be able to turn on because you have cut the ignition wire. Don't know if what I said makes sense but it's something to think about.

Posted By: 87gnblackdemon
Date Posted: August 07, 2003 at 6:56 AM

Heres the link that gave me the idea for the face plate kill switch.

https://www.geocities.com/bracecraig/maxima/kill/

Posted By: JWorm
Date Posted: August 07, 2003 at 7:39 PM

kenmci, he is doing a starter kill, not an ignition kill.
Velocity Motors suggested an ignition kill which is a bad idea because the car would shut off whenever you turn off the radio - including while driving.