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New Relay Diagram

Printed From: the12volt.com
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=16017
Printed Date: August 28, 2025 at 6:46 PM


Topic: New Relay Diagram

Posted By: auex
Subject: New Relay Diagram
Date Posted: July 07, 2003 at 9:18 PM

12Volt, can you add a relay diagram for lowering a power antenna when the trunk is opened?

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Replies:

Posted By: MCubed45
Date Posted: August 14, 2003 at 9:48 PM

depends on the wiring of the power antenna?  stock or aftermarket?  aftermarket antennas are simple.  they have 3 wires.  power, ground, and +12v signal.  with an aftermarket antenna you just need one relay. 

30   to antenna (signal wire)
86   power
85   trunk pin (which shows ground when trunk is open)
87a to radio (signal wire)
87   not used

you basically use the relay to interrupt the signal wire when the trunk is popped.  i did this on mine when installed an aftermarket antenna.  the spoiler i'm getting requires the antenna to be down for the trunk to open or it will bend the antenna.


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