What is illumination wire for?
Thread Starter
Safety Car
Joined: Nov 1999
Posts: 4,285
Likes: 83
From: S.E. WI.
St. Jude Donor '08-'09-'10
What is illumination wire for?
I am changing the HU in my C5 to a Pioneer 5900. Just curious to know what the illumination wire is for? I am guessing night illumination when radio is off.
Last edited by Chalky; Dec 21, 2007 at 08:55 PM.
Safety Car
Joined: Apr 2007
Posts: 3,586
Likes: 0
From: Lynn Haven, FL Sunshine State
St. Jude Donor '08
no it is to illuminate all the buttons on your new h/u. I thought WTF when I put mine in too and didn't connect it. Guess what, I got to take it back out and redo it!! After you get all the wires hooked up turn the car on before you button everything up and make sure it's all working good.
Le Mans Master
Joined: Nov 2004
Posts: 8,718
Likes: 20
From: Dyer IN
Cruise-In IX Veteran
the button light up thing is an eclipse deal
the illumination wire on your radio is to dim it etc when you turn the headlights on, thing is you cant hook it up to the stock harness cause that wire doesnt work, you have to tap the HVAC like in the C5 FAQ
PM if u need more guidance
the illumination wire on your radio is to dim it etc when you turn the headlights on, thing is you cant hook it up to the stock harness cause that wire doesnt work, you have to tap the HVAC like in the C5 FAQ
PM if u need more guidance
Thread Starter
Safety Car
Joined: Nov 1999
Posts: 4,285
Likes: 83
From: S.E. WI.
St. Jude Donor '08-'09-'10
the button light up thing is an eclipse deal
the illumination wire on your radio is to dim it etc when you turn the headlights on, thing is you cant hook it up to the stock harness cause that wire doesnt work, you have to tap the HVAC like in the C5 FAQ
PM if u need more guidance
the illumination wire on your radio is to dim it etc when you turn the headlights on, thing is you cant hook it up to the stock harness cause that wire doesnt work, you have to tap the HVAC like in the C5 FAQ
PM if u need more guidance
Burning Brakes
Joined: Jul 2007
Posts: 819
Likes: 0
From: South Corona, California
You can also tap the traction control button (C6) as it lights up when the headlights go on. You'll need to check with a voltage tester as to which wire to tap. It'll go to 12 (or more) volts when the headlights are turned on.
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