Question about Cars & Trucks
I need to bypass factory amp so i have sound thru my aftermarket head unit
Posted by Anonymous on
I just built a factory amplifier/crossover bypass adapter for my 2002 Chevy Tahoe Z71 (non-Bose system) . This adapter will allow the full range of audio directly from your head unit to the door speakers. Without this adapter, the factory amplifier will cut out much of the bass / low frequency audio to the door speakers. This adapter will continue to provide an audio signal to the factory amplifier for the rear factory subwoofer and cargo area pillar speakers.
I have posted an article with complete set of step-by-step instructions and detailed photos of the build and installation process.
The article also includes direct links to the exact parts that I purchased on Amazon to build this bypass adapter.
This is what the end result looks like. It is a 100% non-destructive adapter than can be installed or removed from the Tahoe at any time. It just plugs in between the factory wiring harness and the factory amplifier.
Posted on Jul 09, 2012
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Posted on Jan 02, 2017
this something i would not do checkout all of the fuses and the fuel pump relay before you do this try this website www.alldatadiy.com to see if they have you truck listed and i also would like to give you this information if you every have any hard to find GM-parts they sells only GM its Scharm auto & truck parts 1-800-292-1032 and they website is www.schramauto.com and i hope i have been some help to you Michigan Man
Posted on May 24, 2009
SOURCE: 2002 CHEVY BLAZER
Can purchased an adapter kit at Best Buy or Circuit City that is color cordinated with the factory wires for about 12.00. This will go right into the factory plug.
Radio 12v orange + radio harness
Radio Ground black - radio harness
Radio Ignition dk. green + radio harness
Radio Illumination gray (dimmer) + radio harness
Factory Amp Turn-on N/A
Power Antenna N/A
LF Speaker +/- tan - gray +,- radio harness
RF Speaker +/- lt. green - dk. green +,- radio harness
LR Speaker +/- brown - yellow +,- radio harness
RR Speaker +/- dk. blue - lt. blue +,- radio harness
Immobilizer Bypass Module: Required: Yes Type: Passlock 2 Part #: 457G, 555L, or 555T
Notes: The Passlock 2 wire colors are yellow, orange/black, and red/white (not used).
Posted on Nov 11, 2008
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