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Old 02-11-2003, 03:53 PM   #1
Scooby Newbie
Member#: 11720
Join Date: Oct 2001
Chapter/Region: TXIC
Location: Houston, TX
Default Power for the Auto dimming mirror?

How does the auto dimming mirror get its power? I assumed that it was plugged into something underneath the roof liner. I was wondering if i could splice the wires of my radar detector into that so that i can use my cigarette lighter for the charger for my phone. Any ideas if this could work? thanks

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IwantONE is offline   Reply With Quote
Old 02-11-2003, 04:24 PM   #2
Scooby Guru
Member#: 15106
Join Date: Feb 2002

there is contant power running to the dome light and map
lights. mine came with the mirror already installed so not
sure...does it require a 12v switched and just a ground?

if so yes, you can eithe tap it to your cigarette
lighter wires or do it the right way and take off the front
part of your ceiling liner. its very easy to do.
kenchan is offline   Reply With Quote
Old 02-11-2003, 05:31 PM   #3
Scooby Newbie
Member#: 11720
Join Date: Oct 2001
Chapter/Region: TXIC
Location: Houston, TX

All it takes is 12 v and ground so i should be good to go. I just wanted to make sure there was wiring up there for me to get to before i started taking apart me headliner. Thanks for the input.

IwantONE is offline   Reply With Quote
Old 02-11-2003, 11:26 PM   #4
Scooby Specialist
Member#: 25037
Join Date: Sep 2002
Chapter/Region: South East
Location: Cornelius, NC

Yes, you can tie into the mirror harness if you like. That's how I wired my radar detector in and it only comes on when the key is in the ACC or RUN positions. Constant power is not what you want since you'll have to remember to turn off the detector everytime you leave the car. You can get to the wiring by first carefully removing the lens from the maplight housing. You'll see a couple of screws holding the housing in place once you get the lens out of the way. Once you have the housing loose (you can let it hang by the wire) you'll be able to reach in and find the mirror harness. The plug on it is about 3/4" square. Use a test light to see which wire is hot. Hope that helps.

Scott Buchanan
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Old 02-12-2003, 06:27 AM   #5
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Member#: 437
Join Date: Oct 1999
Chapter/Region: NESIC
Location: Londonderry, NH
'91 Miata MX5 (Red)
'09 Impreza OBS (Blk/Gry)


Here is how I wired my radar:

V1 Install

Paul G.
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