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yellow wire shows as ground

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=106277
Printed Date: May 10, 2025 at 12:22 PM


Topic: yellow wire shows as ground

Posted By: wltdms
Subject: yellow wire shows as ground
Date Posted: July 21, 2008 at 4:32 PM

i'm putting a stereo system on polaris ranger,which is 12 v,neg  ground system.the sony cd player i'm putting in for some reason,shows 10 volts from the pos. side of battery,which makes it act as a ground and its supposed to be for the mem. and clock.but i unhook the ant which is ground to the alum. top that i have on it,and unhook the ground from the stereo then the 10 volts goes away.why is it going to ground? all wiring been checked all ok.



Replies:

Posted By: kgerry
Date Posted: July 21, 2008 at 5:21 PM

you've lost me... is the vehicle 12v neg ground?        then 10 volts on the postive side sounds about right... am i missing something?



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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979



Posted By: i am an idiot
Date Posted: July 21, 2008 at 5:54 PM

I am lost too.  There is no reason for the voltage to go away from the yellow wire when you remove ground.  Do you also have a switched 12 volt source for the red wire of the radio?  If so does it act the same way?




Posted By: DYohn
Date Posted: July 21, 2008 at 6:10 PM
Isn't a Polaris Ranger an all-terrain vehicle?  Does it even have an alternator?  Is it a voltage regulated system?

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Posted By: i am an idiot
Date Posted: July 21, 2008 at 6:11 PM
It is an ATV with electric start.  We have put systems on a couple of them.  We have replaced the roof with a Rhino-Lined MDF enclosure for 4 speakers, radio and an amp. 



Posted By: audiocableguy
Date Posted: July 21, 2008 at 7:46 PM
Something I have recently encountered:
Not saying it applies here, just didn't want to start a new thread.

Marine systems are starting to use Yellow as ground return. Both RED / Black and RED / Yellow acceptable for DC systems. It wouldn't be a surprise if this expands to other products.


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