Question about 2001 Buick Century

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Looking for a 12 volt spot in the mirror wiring harness. Since OnStar is no longer used I'm hoping to tap into 12volt power for my Garmin GPS at the windshield. /TIA

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Should be orange wire.

Posted on Jun 18, 2009


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2012 Subaru Outback HD Radio Wiring Harness

What exactly are you needing for your GPS? Are you looking for a power/ground wire to tap into? or are you trying to connect some type of audio? I can probably help, but it would be much easier if I understood more clearly what you need to accomplish.

Jun 02, 2012 | Cars & Trucks

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On my 2002 Saab 9-5 Aero I want to tap into 12 volts on the overhead control panel to install a cigarette lighter power outlet to plug in my GPS (I prefer the GPS mounted above my field of vision). I...

Hi! Cigarette lighter wirings is a good idea. Just tap it and follow the diagram of the GPS. About the not charging issue, the alternator carbon will need replacement for the charging is weak. You'll be good after this. Hope this helps and take care.

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I'm looking for the fuse that controls the wire taps/cigarette lighter for the front.

Check the position 32 (Front Power Outlet / Lights / Onstar) in the Power Distribution Box (underhood)...


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Jun 02, 2010 | 2006 Buick Rendezvous

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Need to know what color 12 volt supply

My manual for a 99 300M shows two sources of 12 volt power to the mirror positioning switch, One is from the battery, switch terminal 11 wire M1, PK (pink). The other is from the start-run 12 volt line, switch terminal 5, wire G5 DB/WT (dark blue, white stripe). If you send me your email address to af6im at arrl dot net I can send you a scanned copy of the diagram.

Jun 27, 2009 | 1999 Chrysler 300M

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I want to add in some mirror mounted LED lights, like the newer vehicles (the lighted arrows in the mirrors). I've got the led's I want, now I need to know which wire to tap in to (at the door wiring...

the easiest spot to tap into would be up at the front turn signal trying to find the correct wire in the factory harness where all the wires are together is going to be really tough to do if you pull the front turn signal out and use a meter it should be fairly simple to find the positive wire there.

Apr 29, 2009 | 2000 Ford Expedition

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No dome light on tacoma

The dome light gets 12 volt battery power at all times. The door switch, when the door is opened, allows the current to flow to ground, and completes the circuit. The door switch allows the ground to be made. Measure for 12 volts at the wiring connector, and measure for direct short at the ground wire, with the door open. The Ground wire is white with a black tracer.

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Installing stereo had to put a wiring harness wired it all up red 12volt wire comes separete needs to hook up to ignition i do not know where it goes

Use a 12 volt test light & probe wires in harness from original connection, on feed side .Find a wire that only has power when you turn the key on. That's the one you'll connect that wire to.

Dec 26, 2008 | 2006 Chevrolet Colorado

1 Answer


The Donnelly mirrors use the same 7-pin plug as the Gentex, but the pin-outs are different. Here is the pin-out for the Donnelly mirrors:

Pin 1 - +12 volts
Pin 2 - Courtesy lamp input
Pin 3 - (varies depending on mirror features)
Pin 4 - (varies depending on mirror features)
Pin 5 - Reverse disable (+12 volts in reverse)
Pin 6 - Ground
Pin 7 - Demand lighting input

Aug 22, 2008 | 1998 Buick Century

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