'03 Chevy Trailblazer Switched Power Supply

Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=6415
Printed Date: May 14, 2025 at 4:48 PM

Topic: '03 Chevy Trailblazer Switched Power Supply

Posted By: n516gkj
Subject: '03 Chevy Trailblazer Switched Power Supply
Date Posted: December 09, 2002 at 10:41 AM

hello,

I just purchased a new '03 chevy trailblazer and I wanting to connect my radar detector to a switched 12v power source. any suggestions/directions on where would be welcomed....

i realize the fuse panel is under the left rear seat but i was wondering where would be the proper place to make connections...

thanks,

greg

greg@n516gkj.com

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'03 Trailblazer LT

Replies:

Posted By: brianh
Date Posted: December 09, 2002 at 7:34 PM

Hello Greg, when you plug your radar detector in (with the engine off)does it come on ? If it does your 12 outlet is not switched. You can tie into the back of the 12 volt outlet and use the on/off switch of the unit to turn it on. Or you can just tie it to the accessory lead of your stereo to let it come on when you start up the vehicle. Brian

Posted By: Velocity Motors
Date Posted: December 09, 2002 at 7:49 PM

Go straight to the ignition wires under the steering column ( some disassembly required ) and tap into the PINK wire.

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

Posted By: n516gkj
Date Posted: December 11, 2002 at 10:53 AM

thanks jeff and brianh.....

i might get up the nerve to do surgery on my TB this weekend..... i just have 400 miles on it and really hate to start messing with it so soon... i really like this vehicle ... i have owned 3 of the older blazers (87,92,98), but this one is the best chevy so far...

by the way, anybody know what the small speaker-looking device is on the b-pillar beside the driver's head is??

is it the mic for the onstar????

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'03 Trailblazer LT

Posted By: dyer
Date Posted: December 29, 2002 at 12:08 PM

Your right! The little speaker thing is for onstar.

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Dyer

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