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other uses for power antenna lead

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=110263
Printed Date: July 07, 2025 at 2:10 PM


Topic: other uses for power antenna lead

Posted By: aneed4spd67
Subject: other uses for power antenna lead
Date Posted: January 02, 2009 at 2:51 PM

I am looking to run a couple small fans back by my amps, does anyone know if I can use the power antenna lead off of my AlpineCDA9884 to a relay for the fans? Or can I also use the remote wire to the amps also to the fan relays, I do not know, isn't it just a signal wire.



Replies:

Posted By: ckeeler
Date Posted: January 02, 2009 at 3:09 PM
how many amps of current do the fans draw?



Posted By: DYohn
Date Posted: January 02, 2009 at 3:22 PM
The antenna lead is just a signal wire, yes, but it is only on when you are listening to the radio.  You can use the remote on signal to trigger a 12V relay to switch on your fans if you want them on any time the HU is on.

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Posted By: aneed4spd67
Date Posted: January 02, 2009 at 9:01 PM

thanx DYohn. I am going to use a couple 12v fans off an extra desktop CPU I have laying around. I guess will run the amp remote wire also to a relay to trigger the fans, both amps will need the airflow cause they are going to be in a confined space. Like the power antenna wire, I was thinking the amp remote wire was also just an extremely low amp signal wire. A relay wont use much power, I just did not know if the amp remote wire could handle an amp or so.


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