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 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.

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.

A ground strap is mounted from the engine to shock tower. On four cylinder engines, there is a ground strap from the rear of the muffler to the muffler mounting bracket. 2.5L engines are also equipped with a ground strap mounted from the engine to the transmission. These ground straps should be securely tightened to assure good metal to metal contact.The radio grounds to the cross car beam through pinch brackets that grounds automatically as the radio is installed into the instrument panel.

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.