2004 GMC truck stereo wiring

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popeye004

Copper - Posts: 97

Joined: March 08, 2004

Location: Canada

Posted: June 21, 2004 at 8:42 PM / IP Logged

I was just to about install a stereo in a 2004 GMC pickup and I couldn't find the switched ACC wire. I found the ground, 12 volt positive and all the other wires but no ACC wire. Can anyone tell what I might of missed.

The higher the years go the harder its starting to get to install stuff!!!

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Javelin3o4

Copper - Posts: 239

Joined: August 22, 2003

Location: United States

Posted: June 21, 2004 at 9:43 PM / IP Logged

if your running new wires the orange wire in the ignition harness under the dash should be access.

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popeye004

Copper - Posts: 97

Joined: March 08, 2004

Location: Canada

Posted: June 21, 2004 at 10:23 PM / IP Logged

ok and if I want it from the fuse panel which one do I pick acc1 or acc3 I dont think there was a acc2.

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kgerry

Platinum - Posts: 3,455

This member consistently provides reliable information

Joined: February 07, 2004

Location: Saskatchewan, Canada

Posted: June 22, 2004 at 9:41 AM / IP Logged

the radios dont use a switched acc voltage on the new vehicles.... it utilizes a floating clock circuit

Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

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foltzy

Copper - Posts: 46

Joined: March 07, 2004

Location: United States

Posted: June 22, 2004 at 11:11 AM / IP Logged

from what i was told, you can tag it into the windshield wiper fuse, but that's just ghetto. Tag it off the Accessory wire in the ignition harness..(It should be a 10-12 guage Orange whire leading from the ignition)

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popeye004

Copper - Posts: 97

Joined: March 08, 2004

Location: Canada

Posted: June 22, 2004 at 9:28 PM / IP Logged

Hey guys I got the wire from the heater controls it was a yellow wire is this ok will this work good? it is working fine so far just don't want any sensors to get triped.

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2004 GMC truck stereo wiring

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