If you install speakers, avoid routing the speaker wire near moving parts or sharp edges. You can usually route it along the wiring channel beneath the vehicle's door facings by carefully removing the molding that holds the carpet in place. After you route the speaker wire, replace the molding.

Testing the Stereo

Before you mount the stereo or any speakers you are installing, test the stereo by temporarily connecting the speakers, power wires, and antenna.

Important: Do not cut these wires. If you cut any wire, you cannot obtain a refund or exchange on this product. Radio Shack will provide warranty service if you cut a wire and find the product is defective.

MAKING THE CONNECTIONS

The supplied 14-wire harness includes all the lead wires you need to connect the stereo to speakers, power, and optional components. You might need additional wire, depending on your individual auto sound system, to complete connections. Your local Radio Shack store carries a full line of wire and wire management accessories.

Cautions:

*For added safety and to protect your stereo, disconnect the cable from your vehicle battery's negative (-) terminal before you begin.

*Be sure your speakers can handle 9 watts of power (4.5 watts per channel). Each speaker must have an impedance of at least 4 ohms. Your local Radio Shack store carries a full line of speakers.

*You must connect a separate wire to each speaker terminal as described in the following procedure. Do not use a common wire or chassis ground for any speaker connection.

Using an Adapter Harness

If you are replacing an existing stereo, or if your vehicle has been factory-wired for autosound components, you might be able to use an adapter harness to connect the power and speakers. Radio Shack stores sell adapter harnesses for most vehicles.

Follow the directions that come with the adapter harness to temporarily

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Optimus 120-1998 manual Making the Connections