How to Identify AM/FM Car Radio Wires
- 1). Locate a color code for the vehicle. These are easily found online (see Resources). If you can't find the information in the Resources section, perform an internet search by typing the the make of your car and "stereo color codes" in your favorite search engine. Alternatively many owner's manuals come with wire color codes listed.
- 2). Locate the antenna wire. This is usually be thicker than the other wires. It will be on its own and not part of the connector to the stereo. Many stereos label the antenna port on the rear panel.
- 3). Purchase a technical manual for the vehicle or stereo, or a wire color coding book. All of these documents will answer the wire color code question.
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