Radio Installation Kit
Apr/100
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Which correct radio wiring harness is for the 2004 Chevy cavalier?
im planning to buy an aftermarket radio.. i need the radio wiring harness but its all confusing.. please send me a link to one pls.. i have the dash installation kit.. what else do i need?
You need the aftermarket head unit, wiring harness, dash kit, wire splices, and tools and the knowledge and skills to remove the old unit and install the new one. The harness for your vehicle appears to be this one:
http://www.sonicelectronix.com/item_12650_Metra+71-2003-1.html
Splice the wiring harness that comes with your new head unit to the aftermarket harness specific to your vehicle. Both your new head unit and aftermarket wiring harness will most likely follow the industry standard color code, so you simply splice the harnesses color-for-color.
12V+ Constant - Yellow
12V+ Switched - Red
Ground - Black (typically with spade terminal)
Remote - Blue/White (typically with slide terminal)
Left Front Speaker Positive - White
Left Front Speaker Negative - White/Black
Right Front Speaker Positive - Gray
Right Front Speaker Negative - Gray/Black
Left Rear Speaker Positive - Green
Left Rear Speaker Negative - Green/Black
Right Rear Speaker Positive - Violet
Right Rear Speaker Negative - Violet/Black
You may have other wires on either or both. Many head units will have a "blue" wire which controls a power antenna, a "blue/white" wire to turn on an external amp, and an "orange" wire for immuminating the head unit backlighting and buttons.
Depending on the head unit, there may be other wires.
Make sure to remove any CD(s) from the old unit.
Now, set the parking brake and remove the negative cable from the car battery. This will prevent an accidental short circuit. You'd be surprised how many people don't do this one simple precaution. And a lot of them end up damaging either the new head unit, or some other part of the vehicle electrical system. The 12 volts isn't dangerous to you, but if it shorts to ground or to another electrical component, sparks will be produced. At the very least, it'll blow a fuse. At worst, the new head unit or some expensive electrical component in the vehicle will be damaged.
Your car stereo is mounted in one of two ways: either secured in a metal mounting sleeve by spring clips, or screwed into the dash with brackets. There will be at least 1, and maybe more, "bundles of wires" terminated in a plug going into the back of the receiver, plus a somewhat thicker single wire, usually black. This one is the antenna connection. There is sometimes also a wire, may also be black, but may be green, gray, or even another color, that terminates in a small ring or "spade" terminal, and is fastened to the metallic case of the receiver.
Remove all plugs, connectors, and wires from the receiver.
Now you are ready to install the new head unit.
If you need a mounting kit, install it first. Next, slide and secure the new stereo's metal mounting sleeve into the kit. You can then hold the new stereo up near the dash opening while you connect the stereo wiring adapter to your cars wiring harness and plug the antenna cable in. Slide the stereo into the open dash, but wait to fasten it down. Make sure everything is working properly by testing the stereo first. Reconnect the battery negative cable. Turn the stereo on and check each source (FM, AM, and CD). Then adjust the fader and balance settings to make sure that each speaker is working properly.
Once you've tested everything and are sure the stereo is wired and working properly, finish by securing your stereo system to the dash and reinstalling any pieces of dash that you previously removed. You’re ready to Rock ‘n’ Roll.
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