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remote wire to hu

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=95423
Printed Date: March 28, 2024 at 8:09 AM


Topic: remote wire to hu

Posted By: noob555
Subject: remote wire to hu
Date Posted: July 07, 2007 at 7:56 PM

Sorry for anything that  I ask that may sound stupid but i'm a complete noob at car audio...Anyways my question....how do you attach a remote wire to a head unit?... do you splice the remote wire to the battery wire on the wiring harness?



Replies:

Posted By: furflier
Date Posted: July 07, 2007 at 8:39 PM
Need a little more info.What hu do you have? What are you trying to accomplish? Most aftermarket hu's have a remote wire on them. If it is a factory hu, it might not have one.

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Posted By: noob555
Date Posted: July 07, 2007 at 8:57 PM
Not a specific hu just in general how would you hook up the remote wire to a hu..lets says its a factory one.




Posted By: furflier
Date Posted: July 07, 2007 at 9:25 PM
First off the remote wire is not needed if you are jsut using the hu. The purpose of the remote wire is to turn on an amp or other accessories. As stated above most factory hu's don't have one unless there is a factory amp.

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Posted By: noob555
Date Posted: July 07, 2007 at 9:34 PM
Yeah in a stereo system the remote wire is hooked up to a amp but say i want to install an amp to a factory hu where would i hook up the remote wire in the factory hu?




Posted By: furflier
Date Posted: July 07, 2007 at 10:02 PM
 If the factory hu doesn't have one you can tap in to the accesseory wire.

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Posted By: noob555
Date Posted: July 07, 2007 at 10:18 PM
So in most after market hu a remote wire comes and I just hook that up to the amp and connect the wiring harness, and in a factory hu if theres no remote wire i just tap into a accessory wire?.... One last question..what does it mean to tap into another wire and is there an accessory wire on all factory hu's?




Posted By: i am an idiot
Date Posted: July 08, 2007 at 7:08 AM

The accessory wire is the Switched 12 volt wire.  This wire is the one that gets 12 volts on it when the key is turned to the on or accessory position.  And no not all vehicles have an accessory wire.  If the car is a pre 2003 model then yes it will have an accessory wire.  2003 and later there is a chance it will not have such wire.  When you figure out what kind of car this amp is going into, let us know and we can tell you where to connect the remote wire.  If it is a common vehicle, I am sure they can tell you what color the wire is and exactly where to access it.





Posted By: noob555
Date Posted: July 08, 2007 at 12:22 PM
A 2005 Chevy cobalt do i tap the remote wire into the Factory Amp Turn-on because in the wiring diagram their is neither a accessory wire nor a switched 12v wire.




Posted By: noob555
Date Posted: July 08, 2007 at 6:30 PM
....and if you are suppose to tap into the factory amp turn on wire what do you do if their is neither a factory amp turn on wire or a accessory wire where do i tap the remote wire into now? or does their have to be a factory amp turn on wire or accessory wire.




Posted By: chaos420
Date Posted: July 15, 2007 at 11:40 PM

Being that (not to sound condescending) you don't sound experienced enough to want to tap into your ignition wires and connect the remote wire directly to the accessory wire in your ignition, what I would do, and have done in the past, is run the remote wire to a constant 12v source (ie. hu power/memory wire, or battery positive) through a toggle switch.  You'll have to turn the amp on/off manually but it works.






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