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oem amp bypass, 03' GMC Sierra

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=86959
Printed Date: May 10, 2025 at 4:23 AM


Topic: oem amp bypass, 03' GMC Sierra

Posted By: dguillory
Subject: oem amp bypass, 03' GMC Sierra
Date Posted: December 10, 2006 at 8:06 AM

I need help with bypassing the factory amp in my truck. I have an 03' GMC Sierra with the center console and bose amp. I know the output wire colors from the amp to speakers, but cant find the input wires to the amp. I want to connect the input(which is output from radio) to the output side and bypass the factory amp. I need to know where the wires are and the colors.

Please help as soon as anyone can.

Thanks



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Dguillory-JL Audio, Alpine



Replies:

Posted By: spookiestylez
Date Posted: December 10, 2006 at 8:23 PM
     Audio/Mobile Video                                        
     WIRE          COLOR          POLARITY          LOCATION     
     Battery          ORANGE          (+)          RADIO HARNESS     
     Accesory          (CLASS 2 DATA)     
               THE RADIO HARNESS DOES NOT PROVIDE A SWITCHED POWER SOURCE. RUN A WIRE TO THE FUSEBOX FOR SWITCHED POWER. THE ACCESSORY TURN-ON AND AMPLIFIER TURN-ON ARE CONTROLLED BY THE CLASS 2 SERIAL NETWORK.     
     Ground          BLACK/ WHITE          (-)          RADIO HARNESS     
     Illumination          BROWN          (+)          RADIO HARNESS     
     Dimmer          GRAY          (+)          RADIO HARNESS     
     Amp Turn On          PINK          (+)          RADIO HARNESS     
     LF Speaker (+)          TAN     
     LF Speaker (-)          GRAY     
     RF Speaker (+)          LIGHT GREEN     
     RF Speaker (-)          DARK GREEN     
     LR Speaker (+)          BROWN     
     LR Speaker (-)          YELLOW     
     RR Speaker (+)          DARK BLUE     
     RR Speaker (-)          LIGHT BLUE     
     Amp Location          UNDER CENTER CONSOLE     
     Steering Cntrls          OPTIONAL     
               THIS VEHICLE MAY BE EQUIPPED WITH OPTIONAL ONSTAR® TELEMATICS EQUIPMENT. USE AN APPROPRIATE INTEGRATION HARNESS OR INSTALLATION PROCEDURE TO ENSURE PROPER FUNCTION OF THIS EQUIPMENT.     
     Speed Cntrl          OPTIONAL     
     Radio Security          YES




just run speaker wires from your aftermarket deck to the amp and wire em up to the output side.....Im not 100%,but I think that the speakers in the doors are 1ohm and all the rest are 4ohm....so you should be able to wire the dash and door together in series and get 5ohms. goog luck


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RTFM




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