Lacking ground on stock
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=18647
Printed Date: September 15, 2025 at 10:07 PM
Topic: Lacking ground on stock
Posted By: Jobeto
Subject: Lacking ground on stock
Date Posted: September 08, 2003 at 8:42 AM
I am having a slight problem hooking up my amp in a 2003 Ranger. In my 02 mustang, the stock audio had two amps in the back deck so I tied my amps (pioneer 100/2) input into those amps inputs. My problem now is that I have no decent source to feed the amp, I would like to feed off of one of the rear door speakers, however (I'm an audio newbie) I tested both input wires into the speaker and they both are carrying a current.
I tried using each wire as the input power, and ground, swapped them, used both as an input power with a body ground, even tried each as input power seperately with a body ground, nothing. Amp is powered and on, but no feed.
Any advice?
Replies:
Posted By: Sweekster
Date Posted: September 08, 2003 at 12:18 PM
Does your Ranger have a factory installed amp? ------------- Duane...
If you think you're confused, imagine how you feel. 
Posted By: italnpimp59
Date Posted: September 08, 2003 at 10:01 PM
do you still have the factory radio in? just buy a line out converter and tap it off the rear speaker wires.
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Posted By: kenmci
Date Posted: September 08, 2003 at 10:46 PM
Audio signal is AC voltage not DC voltage so that neither one will show ground. You'll need to figure out which wire is positive and which is negative, usually you can get it from someone on this site.
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