Pairing DEI 516U with the 508D

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=141718
Printed Date: May 12, 2025 at 5:12 PM

Topic: Pairing DEI 516U with the 508D

Posted By: prince504
Subject: Pairing DEI 516U with the 508D
Date Posted: September 14, 2016 at 9:36 AM

looking to pair a DEI 516U and a 508D proximity sensor with a 3rd party alarm. Door lock/unlock, trunk release or any other functions of the alarm isn't desired. Simply want to get a notification on the 2-way remote if someone intrudes in the vehicle and for the viper module to warn off intruders.

I have read on other threads that the 508D can be thrown off based on weather conditions. I was considering wiring the warn away trigger of the 508D to trigger the voice module and wiring the full trigger to the instant trigger of the alarm (hence notifying the fob)

Any idea where to mount the proximity sensor?

Replies:

Posted By: lurch228
Date Posted: September 14, 2016 at 3:44 PM

For best results as close to center of vehicle as possible and as high as possible while staying below the bottom of window opening usually works the best in my experience. If you have a center console us double sided tape or hook side of adhesive back velcro to attach to carpet on floor hump/channel.

Posted By: prince504
Date Posted: September 14, 2016 at 5:57 PM

lurch228 wrote:

For best results as close to center of vehicle as possible and as high as possible while staying below the bottom of window opening usually works the best in my experience. If you have a center console us double sided tape or hook side of adhesive back velcro to attach to carpet on floor hump/channel.

have you ever found the need to mount a metal plate beneath the motion sensor? And would mounting it beneath the car seats (driver side), close to the middle be a good spot?

The vehicle is a 2006 BMW 650i convertible and attempting to take out the center console would suck

Thnx

Posted By: lurch228
Date Posted: September 14, 2016 at 8:03 PM

If the center console has a storage compartment you can usually remove the bin to get access to place the sensor. Or just remove the top of the console at most.

Posted By: prince504
Date Posted: September 14, 2016 at 8:43 PM

lurch228 wrote:

If the center console has a storage compartment you can usually remove the bin to get access to place the sensor. Or just remove the top of the console at most.

Thnx for the advice... You are like th only one (or one of the extreme few) that help ppl in this forum these days..

Much appreciated.

Posted By: lurch228
Date Posted: September 14, 2016 at 9:59 PM

No problem! Some day you can pay it foward!