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03 malibu radio wiring

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i am an idiot 
Platinum - Posts: 13,670
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Joined: September 21, 2006
Location: Louisiana, United States
Posted: January 07, 2011 at 12:22 AM / IP Logged  
The guy at worst buy was trying to sell you a metra 70-2003T harness. Notice the T at the end of the part number. That harness is only for the 00 to the 02 model of that car. Those year vehicles use the factory radio to change settings of the vehicle. The 03 model uses a different harness. The harness for your car should not be 20 feet long. The T harness sells for around 40 dollars. The harness you need does sell for around 100 dollars. You need a pac-audio.com C2R-GM24 or equivalent.
zerepdivad 
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Location: Wisconsin, United States
Posted: January 07, 2011 at 1:03 AM / IP Logged  
no they were actually likely selling a data module of some sort. likely a gmlan2sr, or gmos01 or something along those lines. those pretty much just give you your r.a.p. wire along with door chimes.
A DMM is a beautiful thing.
MECP Advanced Installer Certified.
kgoogs1330 
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Location: Massachusetts, United States
Posted: January 07, 2011 at 1:21 AM / IP Logged  
so i have a radio and the wires that came with it. what else do i need to buy thats gonna cost the least to make it work?
kgoogs1330 
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Posted: January 07, 2011 at 3:54 PM / IP Logged  
i dont care about the door chimes workin on it as long as the radio works.
i am an idiot 
Platinum - Posts: 13,670
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Location: Louisiana, United States
Posted: January 07, 2011 at 9:18 PM / IP Logged  

The reason I "Thought" they were trying to sell him a T harness is because he said that it was 20 feet long.

A Metra 70-2003 will get your radio working.  You will have to connect the red wire of the radio to a switched power source.

kgoogs1330 
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Posted: January 21, 2011 at 1:48 PM / IP Logged  

i finally got the metra 70-2003 in the mail but what wires on it connect to the new radio? the wire colors on the metra70 dont match up to the wires from the car so i dont know which ones goto the speakers and the other wires. also what switched power source should i use?

kgoogs1330 
Member - Posts: 16
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Joined: November 16, 2010
Location: Massachusetts, United States
Posted: January 21, 2011 at 6:43 PM / IP Logged  
i figured out the wire color problem but i still cant figure out where a switched power source is. i also want to know if its okay to ground the radio to a metal bar that runs behind the radio, theres a screw in it that holds a plastic piece to it but the screw goes into the bar.
i am an idiot 
Platinum - Posts: 13,670
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Location: Louisiana, United States
Posted: January 21, 2011 at 8:35 PM / IP Logged  
The harness should have come with a piece of red wire.  You need to run this wire to the fuse box.  There should be at least one fuse in the fuse box that only has power on it when the key is in the on position.  The ring terminal you use to ground the deck should really be in direct contact with the metal of the dash.
zerepdivad 
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Posted: January 22, 2011 at 11:00 PM / IP Logged  
use the harness ground that's why it's there.
run you switched to the ignition switch accessory wire and fuse it.
A DMM is a beautiful thing.
MECP Advanced Installer Certified.
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