Bypassing Stock Amp?

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=51126
Printed Date: July 05, 2025 at 3:16 AM

Topic: Bypassing Stock Amp?

Posted By: xoutlawzx
Subject: Bypassing Stock Amp?
Date Posted: March 01, 2005 at 10:55 PM

I'm trying to install a new hu on a 83 Mustang. The problem I'm having is bypassing the stock amp. Everytime I dissconnect the harness from the amp I lose power. Also I can not find a constant 12v. The Wire diagram states "Light GREEN/ Green ", which is no where to be located. I am straight "hot" wiring...

1983-84 Ford Mustang Stereo Information
Constant 12V+	Light GREEN/ Green
Switched 12V+	Yellow/Black
Ground	n/a
Illumination	Blue/Brown
Dimmer	n/a
Antenna Trigger	ORANGE / Blue
Antenna	Right Front
Front Speakers	3 1/2" Dash
Left Front (+)	Green
Left Front (-)	BLACK/ White
Right Front (+)	WHITE/ Red
Right Front (-)	BLACK/ White
Rear Speakers	6" x 9" Rear Deck
Left Rear (+)	Pink/Red
Left Rear (-)	Pink/Blue
Right Rear (+)	Pink/Blue
Right Rear (-)	GREEN/ Red

Replies:

Posted By: promodeepcycle
Date Posted: March 01, 2005 at 10:58 PM

fact. amp takes a common ground input. and gives a chassis common ground output.. you have to run all new wires to all the speakers you want to play.. as far as the constant 12+ volts........ you prob. only have keyed hot.. run a new 1

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dont be a pet monkey ..use your dmm

Posted By: xoutlawzx
Date Posted: March 01, 2005 at 11:01 PM

I have seperated the speaker wires but the power i lose when the harness is dissconnected at the amp is at the hu...

Posted By: oonikfraleyoo
Date Posted: March 01, 2005 at 11:46 PM

You got to run new power too then.

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Nik
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