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Which wires do I tap for an amp w/ stock headunit?

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Old 09-28-2009, 11:53 AM
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Which wires do I tap for an amp w/ stock headunit?

So I need a lil help. Im almost finished with the Amp install got all the wires tucked and threaded to the rear.

Only issues is for my 09 WRX I am unsure with wires i need to tap into for antenna power and speaker. Its the base model so I have not oem sub just 4 speakers.

SO questions is....
What color wire is the antenna power for the switch power to the amp
What color wires do I tap for the speakers?

Any help?
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Old 09-29-2009, 05:56 PM
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I vaguely remember when I wired mine, you have brown, brown with white stripe, green and green with white stripe are speaker wires.
As for the remote wire I remember testing a bunch of wires with a voltmeter.
I'll take a look at mine pretty soon and let u know
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Old 09-29-2009, 06:37 PM
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+12 Accessory Yellow/Red
Left Rear Speaker – Red/Black
Left Rear Speaker + White/Red
Left Front Speaker – White/Black
Left Front Speaker + Blue/Orange
Antenna Booster Yellow/Black
Ground Black/Blue
Right Rear Speaker – Red/White
Right Rear Speaker + Gray/Green
Right Front Speaker – Green
Right Front Speaker + Brown/Yellow
+12V Battery (Constant-on) Blue/Red

hook up remote turn on to accessory.
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Old 10-04-2009, 01:32 PM
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Originally Posted by Jin
+12 Accessory Yellow/Red
Left Rear Speaker – Red/Black
Left Rear Speaker + White/Red
Left Front Speaker – White/Black
Left Front Speaker + Blue/Orange
Antenna Booster Yellow/Black
Ground Black/Blue
Right Rear Speaker – Red/White
Right Rear Speaker + Gray/Green
Right Front Speaker – Green
Right Front Speaker + Brown/Yellow
+12V Battery (Constant-on) Blue/Red

hook up remote turn on to accessory.
I tried the accessory wire which is the antenna amplifier which worked for the radio only. but i hooked it up to the illumination wire which fixed the issue.
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Old 10-07-2009, 02:50 PM
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Originally Posted by kwiksilverwrx
I tried the accessory wire which is the antenna amplifier which worked for the radio only. but i hooked it up to the illumination wire which fixed the issue.
?? :X

accessory should be triggered with the key turned to "acc" position.
as for illumination, i'm guessing it works because of day time running lights.

whatever works though
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Old 10-12-2009, 03:13 PM
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ya fail again. Now its making popping noises. Humm. IDK I guess i can try the accesory wire
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Old 10-14-2009, 09:47 PM
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tap into an acc/ign wire (u should get 12v when the key is in the "acc" or "on" position) for ur remote rather than the ant wire. ur amp wont turn on b/c it's for tuner. there is no need for the ant if ure listening to a cd...

also maybe turn down ur high/low converter/line output converter a little and also make sure u have a good ground fort amp. wherever ur ground is, did u scrape the paint off to get contact w/ bare metal?
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Old 10-15-2009, 12:48 PM
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Originally Posted by BeE_JiZZeLs
tap into an acc/ign wire (u should get 12v when the key is in the "acc" or "on" position) for ur remote rather than the ant wire. ur amp wont turn on b/c it's for tuner. there is no need for the ant if ure listening to a cd...

also maybe turn down ur high/low converter/line output converter a little and also make sure u have a good ground fort amp. wherever ur ground is, did u scrape the paint off to get contact w/ bare metal?
no. that might be why im getting the popping noise i guess
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Old 10-15-2009, 01:14 PM
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Ur amp can be/going bad as well... the pop coming just from the sub right? Not all ur door speakers or where u tapped in to the speaker wire?
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Old 10-20-2009, 10:29 AM
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im tapped into a rear speaker wire and ya its just the sub thats popping. could it also be it needs to be grounded better?
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