Amp lead
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=58108
Printed Date: October 31, 2024 at 6:22 PM
Topic: Amp lead
Posted By: krayzie2k3
Subject: Amp lead
Date Posted: June 20, 2005 at 11:07 PM
what is the voltage going through the amp turn on wire coming out of the headunit to the amp?
Replies:
Posted By: stevdart
Date Posted: June 21, 2005 at 1:08 AM
~12 volts from aftermarket head units. Some factory decks provide a 5 volt signal to the proprietary amp. Amperage? Less than 1/2 amp.
------------- Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: Teamrf
Date Posted: June 21, 2005 at 1:11 AM
Dang I was too late. ------------- ~The Rookie~
Rookie of the year that is...
Don't let the smoke out of your equiptment..it doesn't go back in.
Posted By: krayzie2k3
Date Posted: June 21, 2005 at 12:28 PM
on a stock head unit running to an amp to power a sub, would i be able to run the remote wire off of the ign 12V wire? would i need an inline fuse or anything like that? thanks
Posted By: mthomecouple
Date Posted: June 21, 2005 at 12:53 PM
i have ran from the ign. wire before with no in line fuse and it was fine for me.
------------- joe
Posted By: outlaw000
Date Posted: June 21, 2005 at 1:38 PM
run it from the ignition,s accesory wire not 12v wire or else it will drain your battery
Posted By: stevdart
Date Posted: June 22, 2005 at 7:25 AM
Yes, fuse the remote wire. Just for the sake of safety when connecting to any power source. You can get a 49 cent fuse holder and a 5-pack of 500 mA (1/2 amp) fuses locally or through PartsExpress...fuse location is near the source, as usual. I have a 500 mA fuse in the remote lead from a switched 12 volt wire, splits to two amps, and have not blown a fuse since the install a year and a half ago.
------------- Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: kgerry
Date Posted: June 23, 2005 at 9:59 AM
mthomecouple wrote:
i have ran from the ign. wire before with no in line fuse and it was fine for me.
until the wire shorts somewhere in the car and starts a fire or burns up a bunch of wiring..... fuse it !!! ------------- Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
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