question bout coil
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=24279
Printed Date: July 26, 2025 at 2:41 AM
Topic: question bout coil
Posted By: SDmustang21
Subject: question bout coil
Date Posted: January 09, 2004 at 8:07 PM
Taking my car apart to clean and do a clean install. My question is what is the coil thing attached to the power input to my aftermarket radio. Had it installed at the store i got it from and just want to know what the little box does on the power wire( has a coil inside). i would like to know what is is and what it does just for my information. Thanks for your help
Replies:
Posted By: SDmustang21
Date Posted: January 09, 2004 at 8:16 PM
also when i took out the radio, an alpine CDA-7875 cd player, i noticed they didn't hook up an orange wire. I think it's the illumination wire. I have a 96 mustang if that helps. i just did my first solder on it so i'm hoping i did the right thing because i never noticed a change in light intensity from the front panel of the deck . And maybe that's why nothing really happened when i scrolled the options in the deck on auto illumination or something like that. My other question is, am i gonna see a difference now that the orange wire is hooked up? I haven't put the radio back in yet, thought i'd ask here first about it.
Posted By: fatdaddyjoe
Date Posted: January 09, 2004 at 8:23 PM
the coil in the box is like a transistor for the power to the head unit.....almost like a surge protector..as far as the illumination wire i belive what it does is allows your back lights on your radio to light when you turn on your parking/dash lights when the radio is off....
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