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2004 Chevrolet Silverado Stereo Wiring Information
Radio Constant 12V+ Wire: Orange Radio Ignition Switched 12V+ Wire: Class 2 Serial Data Radio Ground Wire: Black/White Radio Amplifier Trigger Wire: Pink Left Front Speaker Wire (+): Tan Left Front Speaker Wire (-): Gray Right Front Speaker Wire (+): Light Green Right Front Speaker Wire (-): Dark Green Left Rear Speaker Wire (+): Brown Left Rear Speaker Wire (-): Yellow Right Rear Speaker Wire (+): Dark Blue Right Rear Speaker Wire (-): Light Blue
2004 Chevrolet Silverado Speaker Sizes Audio Front Speakers Size: 6.5? Back Speakers Size: 4? x 6?
The following information is currently not available:
Radio Illumination Dimmer Wire
Radio Antenna Trigger Wire
Front Speakers Size
Rear Speakers Size
use a test light and a battery. the black is ground, orange is constant and yellow is your turn on and off (ignition). then take a 9volt battery to check your speaker wires. front should be green and light green and gray and light gray. double check it has ben a while, rear is blue and light blue, a yellow and brown. you do not need any other wires in the harness unless you are using a power antenna or amp which you can use the yellow wire for ignition. double check with test light and 9volt battery. the 9volt battery will make the speaker pop noise, you then know you have a speaker when it makes that noise.
Is it wired for a trailer light harness? If "yes", is the wiring OEM or aftermarket? You may have a short in the truck's trailer wiring harness, or you may have a problem with the multi-function turn signal lever/wiring, the flasher(s) located under the dash may be defective, or you may simply have burned-out turn signal bulbs (if a front or rear bulb on either side is blown, the signal on that side may not operate). Start the truck, operate the turn signal lever and visually check to see if it's blinking
View wiring diagrams an using a DVOM - digital volt ohm meter is the normal way to find this type problem's. If unsure on how to proceed watch these video's Electric Testing Techniques You Need to Know Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
Free wiring diagrams here http://www.bbbind.com/free_tsb.html
Enter vehicle info. year , make , model an engine size . Then under system click on lighting ,then under subsystem click turn signals .Click the search button then the blue link .Looking at the wiring diagram i see the BCM - body control module make's the turn lamps in the rear work .
Battery LIGHT GREEN (+)
Accesory BROWN (+) RADIO HARNESS Ground BLACK (-) RADIO HARNESS Illumination DARK GREEN/WHITE (+) RADIO HARNESS Dimmer DARK GREEN/BLACK (+) RADIO HARNESS LF Speaker (+) GREEN/RED LF Speaker (-) LIGHT GREEN/WHITE RF Speaker (+) RED/BLUE RF Speaker (-) LIGHT GREEN/BLACK LR Speaker (+) YELLOW/WHITE LR Speaker (-) YELLOW/BLUE RR Speaker (+) GREEN RR Speaker (-) GREEN/BLUE
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