Optimus 120-2152 new illus, The wiring harness has the following labels, Using an Adapter Harness

Cautions:

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

(new illus)

Be sure your speakers can handle 32 watts of power

(16 watts power 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 the GROUND, +12V TO IGNITION, and +12V TO BATTERY wires first, then make all other connections as described in the following sections before you plug the harness with the 14-pin connector into the stereo. If you do not make connections in the order shown, damage to the stereo is possible if any wire connections are made incorrectly.

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.

Note:

The wiring harness has the following labels.

Using an Adapter Harness

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

Follow the directions that come with the adapter harness to temporarily connect the power and speakers.

Connecting Ground, Power, and Optional Components

Follow these steps to connect the harness with the 14-pin connector to ground, primary and memory backup power, and optional components.

1.Disconnect the cable from your vehicle battery's negative (-) terminal.

2.Connect the black ground wire to a chassis ground, such as a metal