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Radio Equipment Installation Forum Forum for discussing how to install radio communications equipment in Mobile, Base, Command Post, EOC, etc configurations.

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Old 07-17-2009, 2:27 PM
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Default Uniden Orange Wire - Silverado

Ok I'm stuck...

Where and how do I hook this up to utilize the dimming feature on the mobile wiring harness..
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Old 07-17-2009, 3:11 PM
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Connect it to a point in your fuse block that changes state (either becomes grounded or gets +12V) when you turn on your lights. Or, find the headlight relay and connect it there (or directly to a headlight post).
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Old 07-17-2009, 3:53 PM
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You should be able to find a wire that is tied to the dash lights on the back of your radio.What year is your silverado? I should be able to locate a wiring harness diagram for you to show which wire you need to tap.
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Old 07-17-2009, 7:57 PM
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Quote:
Originally Posted by pyrofallout View Post
You should be able to find a wire that is tied to the dash lights on the back of your radio.What year is your silverado? I should be able to locate a wiring harness diagram for you to show which wire you need to tap.

2006 1500 Quad Cab
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Old 07-17-2009, 9:12 PM
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I have a 2006 2500 HD crew cab and would be interested in a wiring harness diagram as well.
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Old 07-17-2009, 10:48 PM
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2006 Chevrolet Silverado C1500 Car Stereo Wiring Schematic

Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: The radio harness does not provide a switched power source. Run a wire to the fusebox for switched power.
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: Under the center console.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue



i would think the 2500 is the same as the 1500. the all should share a common harness.
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Old 07-19-2009, 12:12 AM
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There are two different light busses in these, one if pwm for led's and one for traditional lights. You can download the while electrical diagram here
http://www.gmupfitter.com/publicat/2...lectric_CK.pdf

The easiest way is to get a trailer brake controller harness for $5, then slice or sand the little key on the side off that only lets it plug into the trailer brake socket so it will fit into any of the other sockets in the electrical center on the floor. Then pull all the wires from that plug and use one of the other sockets in that electrical center that has the lamp bus you need and put a wire in the plug for that pin and plug in that socket.
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Old 07-19-2009, 7:52 PM
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Quote:
Originally Posted by enine View Post
There are two different light busses in these, one if pwm for led's and one for traditional lights. You can download the while electrical diagram here
http://www.gmupfitter.com/publicat/2...lectric_CK.pdf

The easiest way is to get a trailer brake controller harness for $5, then slice or sand the little key on the side off that only lets it plug into the trailer brake socket so it will fit into any of the other sockets in the electrical center on the floor. Then pull all the wires from that plug and use one of the other sockets in that electrical center that has the lamp bus you need and put a wire in the plug for that pin and plug in that socket.
Why in the world would you tap a wire at the trailer harness when you can just access it right behind the radio?

My truck has the illumination and dimmer wires as well, just tap the illumination wire and done. Even used the switched +12v and the ground from the radio as well for the scanner. no need to make a mess running wires all over the vehicle.
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Old 07-28-2009, 10:20 PM
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I'm not talking about tapping the trailer harness, in that electrical center is the trailer brake controller harness as well as dedicated upfitter circuits. There is always hot, ignition switched and accessory switched all in that electrical center. I just suggest using a slightly modiified $5 trailer brake plug instead of the $50 plug from a dealer.
No sense in sharing/tapping another circuit when they provided dedicated ones already just for purposes like these.
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