Question about Cars & Trucks
Im trying to install an aftermarket stereo in my 20004 silverado 1500 but when i connect the red ignition wire from the stereo to the Radio Ignition Switched 12V+ Wire: Class 2 Serial Data from the truck it drains the battery
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Posted on Jan 02, 2017
This vehicle does not have a switched power suppy in the factory harness. The orange wire in the car harness is a constant 12 volts.
To resolve connect the 12 volt power supply from the head unit to a switched circut at the fuse block and this will resolve your problem.
Posted on Sep 08, 2010
here is the factory wire diagram colors from the Olds manual.
2003 Oldsmobile Bravada Car Radio Stereo Audio Wiring Diagram
Car Radio Constant 12v+ Wire: Orange
Car Radio Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
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
Posted on Jun 18, 2009
i belive the bigger should be the switch power. all the constant should do is keep your memory alive and the clock ticking. it would take more power for the radio to actually work. and did you buy an install kit? if you did all the directions would be really simple.
Posted on Oct 15, 2009
Tips for a great answer:
The digital radio receiver (DRR)
The electronic brake control module (EBCM)
The inflatable restraint sensing and diagnostic module (SDM)
The powertrain control module (PCM)
The vehicle theft deterrent (VTD)
The class 2 serial data link also allows a scan tool to communicate with the above modules for diagnostic and testing purposes.
The class 2 serial data link on this vehicle is configured in a star pattern. There is no redundant path for the serial data to flow through. If a class 2 serial data circuit develops an open condition, the module connected by that circuit will not be able to communicate.
If not hooked up right the vehicle may not even start .
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