relay for warn beep with motion sensor

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Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=114217
Printed Date: May 02, 2025 at 4:06 PM

Topic: relay for warn beep with motion sensor

Posted By: kilimats
Subject: relay for warn beep with motion sensor
Date Posted: June 04, 2009 at 10:49 AM

I am looking for a relay to enable the first stay warn beep using the DEI 508D. I currently use the blue wire only with success but having a warning beep would greatly reduce false alarm

This is how I setup the motion sensor in my 2002 VW Golf : [url=https://forums.vwvortex.com/zerothread?id=4414568]https://forums.vwvortex.com/zerothread?id=4414568[/url]

And this is the motion sensor's manual i'm currently using, I hope someone can help:

[img]https://i5.photobucket.com/albums/y188/kilimats/DIY%20Alarm/instructions1.jpg[/img] [img]https://i5.photobucket.com/albums/y188/kilimats/DIY%20Alarm/508d-1.jpg[/img]

Replies:

Posted By: kilimats
Date Posted: June 04, 2009 at 10:52 AM

The image didn't work, here they are

posted_image

Posted By: howie ll
Date Posted: June 04, 2009 at 11:09 AM

Blue to 85, 12v+ fused at 3-5amps to 86 and 30, 87 to Siren red. Siren black to ground.

Posted By: kilimats
Date Posted: June 04, 2009 at 11:52 AM

howie ll wrote:

Blue to 85, 12v+ fused at 3-5amps to 86 and 30, 87 to Siren red. Siren black to ground.

Thank you so much for the quick response, sorry im no electrical guy, not sure what you meants with those numbers

this is how I have the wires conencted right now

- Blue wire from sensor to RED / brown in harness (blue arrow shows location)
- Red wire from sensor to RED / black wire in harness (red arrow shows location)
- Black wire from sensor goes to ground (Black arrow shows location)
- Green Wire is not connected anywhere

posted_image

Posted By: howie ll
Date Posted: June 04, 2009 at 1:11 PM

Red to a RED, what's the red brown, black is correct blue via relay as shown above to a siren, your wiring is a bloody mess, I should have taken photos of an 00 Golf I did today, you won't find my wiring. Look to the right of your red and blue arrows, you can just see the ignition loom, go to a red wire, fused via 3amps. If I remember RED / black is the brake switch output to the brake lights.

Posted By: kilimats
Date Posted: June 04, 2009 at 1:28 PM

howie ll wrote:

Red to a RED, what's the red brown, black is correct blue via relay as shown above to a siren, your wiring is a bloody mess, I should have taken photos of an 00 Golf I did today, you won't find my wiring. Look to the right of your red and blue arrows, you can just see the ignition loom, go to a red wire, fused via 3amps. If I remember RED / black is the brake switch output to the brake lights.

yeah its a mess lol, but hidden by a clean trim panel posted_image

I can see how much of a n00b i am by reading your post, for example I am not sure what you said by fused by 3amps

Anyway, like i said, the motion sensor currently works fine but without the pre-warn beep, So I was wonderign if I could connect that green wire to a relay, and if so, which relay and how.

If I can figure it out with you guys, I will update my tutorial on the car forum here: https://forums.vwvortex.com/zerothread?id=4414568 . that way many MK4 owner will have easy instruction to upgrade their alarm with a fully working motion sensor

Posted By: kilimats
Date Posted: June 07, 2009 at 12:55 PM

sorry for being a noob, would you have a link where I could learn more about relays, I need to get that warn signal working posted_image