For 1990-2009 cars

The Entertainment System on this vehicle is configured with either a base or an uplevel system. Both the base and uplevel systems contain a radio, antenna, and speakers.

The uplevel system differs from the base level system by providing the customer with a tape player.

The following list shows the base and uplevel radios available for this vehicle:

• | Base Radio (UM7) - AM/FM

• | Base Radio (UM6) - AM/FM with Cassette

#### Radio Features

Controls | Base Radio UM7 | Uplevel Radio UM6
--- | --- | ---
Power | Push PWR switch to turn the radio on.
Call | If the radio is On, press the CALL push-button in order to display the clock for a few seconds. In order to change what is normally shown on the display (station or time), press the CALL button and the SET button.
Volume | The volume is adjusted by sliding VOLUME lever to the right or left.
Tune | Press the TUNE button up or down.
Seek | Momentarily press SEEK button
Scan | Press the SCAN button.
Presets | Six AM and Six FM
Preset Saving | Press 1 of the six push-buttons, within 8 seconds. In the display, SET will stop blinking indicating the preset is set. Whenever that numbered button is pressed, the set station returns. Repeat the steps for each push-button.
Set Clock | While pressing the SET button, press the UP button until the correct hour appears on the display. While pressing the SET button, press the DOWN button until the correct minute appears on the display. When the UP/DOWN button is pressed and held, hours or minutes advance rapidly.

If electrical power is interrupted by a blown fuse, discharged battery, etc, reset the clock after power is restored.

Fade or Balance | The fade and balance is adjusted by sliding FAD and BAL levers to the right or left.
Bass or Treble | The bass and treble is adjusted by sliding BAS and TRE levers to the right or left.
LOUD | Press this button in order to increase the bass and treble at low volumes. LOUD will appear in the display. Press this button again in order to turn LOUD off.

### AM/FM Reception

#### Radio Signal

The radio signal is sent from a broadcast station and is then received by an antenna. The strength of the signal received depends on the following:

• | The power output, wattage, of the broadcasting station

• | The location of the vehicle or receiver relative to the broadcast tower.

• | Obstacles between the tower and the receiver

• | Atmospheric conditions

• | What band, AM or FM, the station is broadcasting

• | Type of antenna and the ground plane

#### AM Reception

The AM band has a lower frequency range than the FM band. These longer wavelengths:

• | Bend around Obstacles

• | Follow the curvature of the earth

• | May reflect off the ionosphere, "skip"

The AM frequencies have longer range due to the ground wave. The ground wave follows the curvature of the earth and is effected by its conductivity. Greater conductivity equates to less signal loss thus transmission over water is better than over land. The AM band has a range of 80-320 km (50-200 miles).

#### FM Reception

The shorter wavelengths of the higher frequency FM band:

• | Reflect off obstacles

• | Are absorbed by the ground

• | Penetrate the ionosphere

Broadcasts in the FM band are limited to "line of sight" reception which is typically 40 km (25 miles). Even when out of a direct line of sight, the signal may be reflected into areas that would be in a "shadow" otherwise. Factors which affect the line of sight include:

• | Height of the broadcast antenna

• | Height of the receiving antenna

• | Terrain and buildings in the broadcast path