What is the Illumination for?
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=14761
Printed Date: September 12, 2025 at 3:07 PM
Topic: What is the Illumination for?
Posted By: mark241
Subject: What is the Illumination for?
Date Posted: June 11, 2003 at 12:40 PM
I recently installed a head unit into a 2002 Nissan Maxima and had a little trouble finding the correct wire for switched +12 Volts. When I had those connected I didn't connect the Illumination wire because I had a hard enough time finding the others. What is that wire for and do I really need it?
Replies:
Posted By: Velocity Motors
Date Posted: June 11, 2003 at 12:54 PM
Illumination wire is for decks that require the additional hook up for the back lighting. Most decks now have built-in back lighting or LCD displays.
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: chasesaccessori
Date Posted: June 11, 2003 at 12:54 PM
Just won't dim the head unit light is all.
Posted By: caveman
Date Posted: June 11, 2003 at 11:02 PM
the wire for the illumination is RED / white in the car radio harness. Connect this to the ORANGE / white in your stereo harness if you would like it to work. Steve ------------- "Installing it yourself keeps my repair man busy"
Posted By: mark241
Date Posted: June 18, 2003 at 12:52 PM
The car has a dimming roll switch, so if I connect this wire, will it work in conjuction?
Posted By: sf22giants
Date Posted: June 18, 2003 at 7:40 PM
It should as long as you splice into the factory dimmer wire. Because when you roll that switch, it too is connected to your radio dimmer and by not connecting the ORANGE / white wire on the new deck, that dimming option will be gone.
Posted By: mark241
Date Posted: June 19, 2003 at 7:31 AM
Yes, but the wire is not the dimm wire on the HU, it's the illumination wire. Will it still work
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