Amp lead

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krayzie2k3

Copper - Posts: 47

Joined: January 14, 2004

Location: United States

Posted: June 20, 2005 at 11:07 PM / IP Logged

what is the voltage going through the amp turn on wire coming out of the headunit to the amp?

stevdart

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Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: June 21, 2005 at 1:08 AM / IP Logged

~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.

Teamrf

Gold - Posts: 1,031

Joined: January 13, 2004

Location: United States

Posted: June 21, 2005 at 1:11 AM / IP Logged

Dang I was too late.

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Rookie of the year that is...

Don't let the smoke out of your equiptment..it doesn't go back in.

krayzie2k3

Copper - Posts: 47

Joined: January 14, 2004

Location: United States

Posted: June 21, 2005 at 12:28 PM / IP Logged

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

mthomecouple

Member - Posts: 24

Joined: May 04, 2005

Location: United States

Posted: June 21, 2005 at 12:53 PM / IP Logged

i have ran from the ign. wire before with no in line fuse and it was fine for me.

joe

outlaw000

Member - Posts: 42

Joined: April 14, 2005

Location: United States

Posted: June 21, 2005 at 1:38 PM / IP Logged

run it from the ignition,s accesory wire not 12v wire or else it will drain your battery

stevdart

Platinum - Posts: 5,816

Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: June 22, 2005 at 7:25 AM / IP Logged

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.

kgerry

Platinum - Posts: 3,455

Joined: February 07, 2004

Location: Saskatchewan, Canada

Posted: June 23, 2005 at 9:59 AM / IP Logged

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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Amp lead

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