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Audio, Video and Alarm Discussions This forum is for discussing audio and video topics. Such as upgrading or repairing your A/V system.



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Old 07-16-2008, 01:27 PM   #1
mlkmgr
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cool factory speaker wire questions


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hello all,
i just joined to ask a couple of questions. my cuz is wanting to add a amp/sub combo to his factory radio in his 07 tahoe. he has a speaker level out to pre-amp converter PAC SNI-35.

what colors are the factory speaker lines out of the back of the radio? would i be better off tapping front or rear speaker lines?

thanks to anyone that can offer some help...
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Old 07-16-2008, 03:35 PM   #2
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Radio 12v red/white + radio harness
Radio Ground black - radio harness
Radio Ignition (GMLAN Serial Data)
Radio Illumination yellow (dimmer) + radio harness
Factory Amp Turn-on same as power antenna wire
Power Antenna white + radio harness
LF Speaker +/- tan - gray +,- radio harness or amplifier
RF Speaker +/- lt. green - dk. green +,- radio harness or amplifier
LR Speaker +/- brown - yellow +,- radio harness or amplifier
RR Speaker +/- dk. blue - lt. blue +,- radio harness or amplifier

Notes: If equipped, the amplifier is under the rear of the center console.

At the amplifier, the left subwoofer wires are dk. blue/white (+) - lt. green/black (-). The right subwoofer wires are dk. green (+) - lt. blue/black (-).
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Old 07-16-2008, 04:02 PM   #3
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thanks AZ, that is exactly the info i was looking for!!!

if he has factory sub(s), where are they located? thanks again...
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Old 07-16-2008, 04:03 PM   #4
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Quote:
Originally Posted by mlkmgr View Post
thanks AZ, that is exactly the info i was looking for!!!

if he has factory sub(s), where are they located? thanks again...
No problem......It is under the center console. Also, welcome to the site.
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Old 07-16-2008, 04:31 PM   #5
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another kwik question. should i tap into the sub wiring OR the main speaker wiring with the line out converter? his truck is equipped with bose and we verified the sub under the console. thanks again...

Last edited by mlkmgr; 07-16-2008 at 04:37 PM.
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Old 07-16-2008, 04:57 PM   #6
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Quote:
Originally Posted by mlkmgr View Post
another kwik question. should i tap into the sub wiring OR the main speaker wiring with the line out converter? his truck is equipped with bose and we verified the sub under the console. thanks again...
I actually had my set up prior, with the LOC. I bought an RCA adaptor and tapped into the rear left and right speaker wires to get the signal.
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Old 07-16-2008, 05:03 PM   #7
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thanks for your continued help AZ!! i will tap into the rear speaker. but i am still a little confused by your wiring diagram description above with the positives and minuses. could you clarify a little with only using the rear speakers? thanks again....
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Old 07-16-2008, 05:12 PM   #8
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Come to think of it.....I didn't use a LOC for my old set up. Sorry about that. I actually had an amp that had speaker level inputs....so i didn't need a LOC. Let me see if I can find some more info for you or maybe someone will chime in.

Are you asking about this below??
LR Speaker +/- brown - yellow +,- radio harness or amplifier
RR Speaker +/- dk. blue - lt. blue +,- radio harness or amplifier
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Old 07-16-2008, 05:18 PM   #9
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yes that. just a little confused with all the + and - symbols.
the plus wires are brown/yellow and dk/lt blue, while the neg is radio harness or amp??
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Old 07-16-2008, 05:23 PM   #10
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Left rear speaker Brown- Yellow+
Right rear Speaker Dk Blue- Lt Blue+
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