Looking for 2004 switched ignition power

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Jan 22, 2008 | 12:43 PM

slplank

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Instructor

Joined: Oct 2007

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From: Rocklin CA

Looking for 2004 switched ignition power

Posted this in the audio section but I'm looking for maximum exposure since I am in the middle of this changout. I'm installing an after market HU and have been told to look in the passenger side footwell for an unused 3 lead harness and to tap into the yellow wire for my switched power. I'm having trouble locating this and recently read a post referring to the fact that the 2004 model year may not have this harness. Can anyone confirm and if so where is the best place to tap into switched power?

Thanks for any help you can offer.

Jan 22, 2008 | 12:49 PM

steve8

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Joined: Nov 2004

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From: Central Ma

I'm not sure if this is any help, and without looking I can't even remember for sure, but when I added my heated seats, I think I went into #22 slot.
This could be totally wrong and I will try to verify, so beware.
Someone has to come through for you with better info than this.

Jan 22, 2008 | 01:43 PM

slplank

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Instructor

Joined: Oct 2007

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From: Rocklin CA

Thanks Steve8. Any other comments from you experienced forum members?

Jan 22, 2008 | 02:12 PM

Kale

Team Owner

Joined: Feb 2000

Posts: 51,504

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From: Sacramento CA

I tapped switched power from the ignition switch. I think its brown. Pentavolvo knows for sure. -he's the one that helped me.

Jan 22, 2008 | 03:12 PM

Vega$Vette

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From: Wesley Chapel, FL Las Vegas, NV

I tapped the ignition switch wire harness. If I remember correctly is was the pink wire or maybe brown or orange. I probed with my multi-meter to verify.

Jan 22, 2008 | 03:53 PM

HummelS

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Joined: Aug 1999

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From: Manhattan, KS Missing SoCal since 2005

The 2004 models don't have the 3-wire aux harness that was in the earlier c5's. I have no idea why GM removed it - it was very useful to have a switched/unswitched lead to tap into.

Jan 22, 2008 | 04:08 PM

DeeGee

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Joined: Dec 2003

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From: Horncastle Lincolnshire, England

2023 C5 of the Year Finalist - Unmodified

I didnt realize that the 04 didn't have the spare connector by the BCM

I used fuse #22 for my extra switched supply. You can buy the plug in connector at Autozone. heres a pic someone posted a while ago