Radio/Stereo: Description and Operation

INTRODUCTION
For operation of the factory installed standard and optional radios with cassette or compact disc player, refer to the Sound Systems Operating Instructions in the Owners Manual supplied with the vehicle.

The manual antenna mast has a swirl shape to prevent antenna whistle.
The vehicles are shipped with fuse 5 removed from the Junction Block. The fuse replaces the ignition-off draw (IOD) connector. Fuse 5 is a ten amp fuse. When removed it prevents the battery from discharging during storage.

The vehicle has two speaker systems:
Standard Speaker System
- Two instrument panel speakers
- Two door speakers
- Two rear quarter panel speakers

Infinity Amplified Speaker System
- Amplifier mounted under the passenger seat
- Two instrument panel speakers
- Two door speakers
- Two rear quarter panel speakers

While driving the amplifier provides unique sound equalizations when the convertible top is in the up position or in the down position. The amplifier remembers which mode it is in as long as the battery voltage (B+) is supplied to the amplifier. If the battery voltage is removed for only a few minutes by:
- Disconnecting the battery
- Dead battery
- Fuse Removal
- Amplifier disconnected

The amplifier reverts to a top up condition even if the top is down. If the amplifier mode does not match the convertible top position, operate the convertible top one cycle and this will reset amplifier to the correct mode.

SYSTEM OPERATION
Interference Elimination
Some components used on the vehicles are equipped with a capacitor to suppress radio frequency interference/static.

Capacitors are mounted in various locations internal to the generator, instrument cluster and windshield wiper motor.

To eliminate radio interference, ground straps are used in different areas of the vehicle. These ground circuits should be securely tightened to assure good metal to metal contact. The ground straps conduct very small high frequency electrical signals to ground and require clean surface contact area. The radio ground is supplied from the instrument panel harness and is attached to the rear of the radio. Some engines have other ground straps to eliminate further radio interference:
- Engine to shock tower
- Engine to transmission

Radio resistance type spark plug cables in the high tension circuit of the ignition system complete the interference suppression. Faulty or deteriorated spark plug wires should be replaced.