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post #1 of (permalink) Old 01-24-2011, 10:41 AM Thread Starter
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aftermarket stereo help w/ wiring.

I was going to install a new aftermarket stereo into my 04 impala so i figured id do it myself and pull everything apart and try to install it.

the problem is that i have half of the radio harness and the antenna adapter available but not the small radio harness that my old factory radio used. i tried to connect everything to the aftermarket stereo without the small harness and the thing is that there is no sound and there is no illumination. the aftermarket stereo didnt come with illumination wires so i left that alone with the RCAs.

also when i go to turn my car on the stereo evidently has the function of taking in cds and ejecting them but no sound/radio.

heres some pix as to help out hopefully.



black one was the one i was refering to as 'smaller' one. thanks in advance.
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post #2 of (permalink) Old 01-24-2011, 03:48 PM
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Originally Posted by Mnguyen View Post
I was going to install a new aftermarket stereo into my 04 impala so i figured id do it myself and pull everything apart and try to install it.

the problem is that i have half of the radio harness and the antenna adapter available but not the small radio harness that my old factory radio used. i tried to connect everything to the aftermarket stereo without the small harness and the thing is that there is no sound and there is no illumination. the aftermarket stereo didnt come with illumination wires so i left that alone with the RCAs.

also when i go to turn my car on the stereo evidently has the function of taking in cds and ejecting them but no sound/radio.

heres some pix as to help out hopefully.



black one was the one i was refering to as 'smaller' one. thanks in advance.
the black one is for onstar not needed.dose it have a factory amp

if it dose did hook up amp turn on blue/ white off new radio to blue wire in harness
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post #3 of (permalink) Old 01-24-2011, 07:51 PM Thread Starter
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woahh braah. the pics are hard to make out for me.. but what youre saying is that i should connect the blue/white wire from the car to the blue/white to the harness?

i think i already did..i tested the setup with a multimeter and everything is connected to where it should be.. heres a recent pic.



the manual that came with it said that that particular blue one was the amp wire plus it was the only blue one there.

and heres the harness and the aftermarket harness in whole.

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post #4 of (permalink) Old 01-25-2011, 03:11 AM
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the red wire you have connected is not in the car as acc . you can get switched (acc) power at ing switch brown wire fuse with 10 amp fuse
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post #5 of (permalink) Old 01-25-2011, 03:52 AM Thread Starter
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uh..what?

are you saying the red wires i connected are not meant for each other? thats the problem?

and to connect the red wire from the aftermarket stereo with a brown wire?
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post #6 of (permalink) Old 01-25-2011, 06:33 AM
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uh..what?

are you saying the red wires i connected are not meant for each other? thats the problem?

and to connect the red wire from the aftermarket stereo with a brown wire?
yes that is one of the things the module dose in my pic(blue box) gives you switch power .factory radio turns on by data from bcm . the ignition switch is one of the easy places to get switch power (brown wire),or buy the right harness that gives you acc power
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