99 Grand Am Stereo Wiring

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=57090
Printed Date: May 19, 2025 at 1:24 PM

Topic: 99 Grand Am Stereo Wiring

Posted By: rjlaco
Subject: 99 Grand Am Stereo Wiring
Date Posted: June 05, 2005 at 10:26 AM

I am replacing the factory stereo with a new Pioneer unit. Can anybody tell me what is the difference between "Dimmer" and "Illumination" wires in the factory harness? The new unit only has one wire labelled "illumination". I am assuming the "dimmer" won't be connected. The factory harness also has a green wire (not a speaker wire) that is not listed on any diagrams I have found. Any help would be appreciated. Any help would be appreciated.

Replies:

Posted By: Velocity Motors
Date Posted: June 05, 2005 at 11:57 AM

Dimmer wire dims with the lights ( from 0 volts to 12 volts ) and the illumination wire goes to your parking light wire ( 12 volts when lights are on ).

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

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