Late Model Mustang power wire routing

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=41116
Printed Date: May 14, 2025 at 7:57 PM

Topic: Late Model Mustang power wire routing

Posted By: pirateg
Subject: Late Model Mustang power wire routing
Date Posted: October 18, 2004 at 11:02 AM

Hey guys,

I am going to be helping a friend install a amp and sub in his mustang, it is a late model, like a 2000 or something. before I go to help him I wanted to see if anyone knew the best place to route the power wire through the firewall (we're just using 8 guage) I havent had a chance to look at his firewall yet myself and was hoping someone could tell me the best place so i dont waste time

also, he has the mach 460 or whatever sound system, and until he gets more funds to upgrade, he is going to be leaving all the factory stereo in place, just adding the sub and amp. which side should the power cable be routed? Im not sure what side the signal for the factory amps are goin down or if it would really matter in the first place because it doesnt use conventional rca cables to provide the signal

thanks in advance

JAKE

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Replies:

Posted By: tbirdman74
Date Posted: October 18, 2004 at 11:26 AM

Its usually best to run the power wire down the same side of the car as the battery, that way you dont have to crossover somewhere in between. I want to say that the batt is on the pass. side, but not for sure(off the top of head). And I think you can use a factory grommet under pass. dash, or punch a hole, cant remember which. But not too difficult either way. I assume he's adding the amp with a loc, correct? Should be able to hook it in at or near rear speakers. Good Luck.

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If it don't fit, Force it.
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Posted By: Francious70
Date Posted: October 18, 2004 at 12:12 PM

In Mustangs it's actually on the drivers side, at least it was on his ('90). We ran a power wire thru the gromet that the steering wheel went thru and to the hatch. Worked great.

Paul

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Posted By: pirateg
Date Posted: October 18, 2004 at 12:29 PM

thanks guys,

There should be a grommet but i wanted to ask first.

and yes birdman, we're goin to use a variable loc, we're planning to connect the loc after the factory amp before the rear speakers, this sound right?

also, im planning to use a hot wire from the ignition, hopefully i can pull it off the fusebox like in my integra

Thanks again