Audio relay?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=67219
Printed Date: May 05, 2025 at 8:52 PM

Topic: Audio relay?

Posted By: tomasito
Subject: Audio relay?
Date Posted: November 28, 2005 at 6:20 PM

I am upgrading the stereo system of a 1999 miata. I removed all of the bose system hardware. The bose amp was removed.

Question:
1. I am using a Pioneer DEH7700 for a head unit, what/where do I connect so that when I use the FM radio on the new HU the
antenna will automatically go up

2. Since I’m installing a new stereo system, is there still use for the audio relay?
3. Is the audio relay - controls the automatic up and down of the stock antenna?

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Tomasito

Replies:

Posted By: suicidecustom
Date Posted: November 28, 2005 at 8:27 PM

in the amps harness there will be an ignition wire(12 volts when the key is on) and a power antenna wire. connect them and the antenna will go up when you turn the car on and go down when you turn it off

Posted By: suicidecustom
Date Posted: November 28, 2005 at 8:28 PM

sorry, if not it will be in the radios harness

Posted By: tomasito
Date Posted: November 28, 2005 at 8:52 PM

Is there a connection that the antenna will only go up, if I listen to the radio.

With the stock stereo (Bose) the antenna went up when I was listening to the radio, and it went down if I was playing the CD.

I am in the process of upgrading the stock stereo with a pioneer DEH-P7700MP

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Tomasito

Posted By: geepherder
Date Posted: November 28, 2005 at 10:23 PM

Just use a wiring harness and it will make your job simpler. Remember that many Mazda's use a negative trigger for the power antenna, so you may need to use a relay to convert the polarity.

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My ex once told me I have a perfect face for radio.

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