02 Rear dutch door speaker wires

02 Rear dutch door speaker wires

Postby haze5736 [OP] » August 22nd 2015, 11:48pm

I couldn't find a post that shows which wire is (+) and (-) for the rear dutch door speakers. Does anyone know?
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Re: 02 Rear dutch door speaker wires

Postby George Jetson » August 23rd 2015, 12:32am

Found this but not sure about wire colors for other years.


2003 Chevrolet Astro Van Stereo Wiring Information

Radio Battery Constant 12v+ Wire: Orange
Radio Accessory Switched 12v+ Wire: Yellow
Radio Ground Wire: Black
Radio Illumination Wire: Gray
Stereo Dimmer Wire: Brown
Stereo Antenna Trigger Wire: Pink
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue
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Re: 02 Rear dutch door speaker wires

Postby AstroWill » August 23rd 2015, 8:40am

No rhyme or reason with the wire color scheme, looks correct to me ;)

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Re: 02 Rear dutch door speaker wires

Postby haze5736 [OP] » August 23rd 2015, 11:40am

George Jetson wrote:Found this but not sure about wire colors for other years.


2003 Chevrolet Astro Van Stereo Wiring Information

Radio Battery Constant 12v+ Wire: Orange
Radio Accessory Switched 12v+ Wire: Yellow
Radio Ground Wire: Black
Radio Illumination Wire: Gray
Stereo Dimmer Wire: Brown
Stereo Antenna Trigger Wire: Pink
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue


I found this post but it doesn't show the in-door speakers. I have the haynes manual but it shows a light blue and dark blue wire for the right rear. But my van has a light blue with black stripe and green. The factory speaker terminals are labeled A and B. I have no idea how that relates to + and -. If they were going to print A and B why not just print + and - ? Is A and B some sort of standard someone knows about? Is there a way to test with a meter? When I test each wire with the radio on I get the same voltage reading out of both wires to ground. I get 0 between the wires.
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Re: 02 Rear dutch door speaker wires

Postby Leeann_93 » August 23rd 2015, 2:58pm

RadioWiring.jpg


RadioWiring2.jpg


RadioWiring3.jpg
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Re: 02 Rear dutch door speaker wires

Postby haze5736 [OP] » August 24th 2015, 1:39pm

Thank you Leann, that was so incredibly helpful. I don't understand why wire colors in the vehicle don't match the schematic. I had to go by the A/B labeling since my wire colors don't match.

Also, it would appear that the upper pillar speakers are not powered by the factory amp even though the wires go thru the connector. I was still getting sound from them after disconnecting the amp.

Does anyone know if I can use any of the existing wires as my remote signal to tun on the aftermarket amp? My aftermarket head unit has a remote signal wire but I would prefer not to run an additional wire if I'm already getting the signal through the factory wiring harness.
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Re: 02 Rear dutch door speaker wires

Postby George Jetson » August 24th 2015, 5:09pm

Great post Leeann, thanks. I will print a copy when I get home. It may be a while before I get back into a new speaker install.
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Re: 02 Rear dutch door speaker wires

Postby Leeann_93 » August 24th 2015, 9:46pm

haze5736 wrote:Thank you Leann, that was so incredibly helpful. I don't understand why wire colors in the vehicle don't match the schematic. I had to go by the A/B labeling since my wire colors don't match.

Also, it would appear that the upper pillar speakers are not powered by the factory amp even though the wires go thru the connector. I was still getting sound from them after disconnecting the amp.

Does anyone know if I can use any of the existing wires as my remote signal to tun on the aftermarket amp? My aftermarket head unit has a remote signal wire but I would prefer not to run an additional wire if I'm already getting the signal through the factory wiring harness.


Glad I could help.

Because they switch wiring colors depending on what wires they have on hand at the time...or they switch mid-year because these are the colors they could get...or the dude on the line was too lazy to refill his wire spools. Who knows?

No, that's correct; the rear pillar speakers are not powered by the amp.

That part I dunno. Sorry.
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Re: 02 Rear dutch door speaker wires

Postby magster65 » December 12th 2015, 8:28pm

To make sure you have them right... grab a multimeter and stick it in voltage measurement mode. Attach one connector to each lead. Turn the stereo on, If your red connector is attached to the positive lead, the reading will show "+ve". If not, your meter will read "-ve".
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