RADIO IGNITION NOISE IN REAR SPEAKERS

Model and Year 1987-88 BERETTA, CORSICA

Some comments have been received about ignition noise being heard through the rear speakers on 1987-88 Beretta, Corsica models.

The electrical noise is being transmitted between the Direct Ignition System (DIS) wires and the rear speaker wires in the Instrument Panel (I/P) Harness. To repair this condition, install a separate jumper harness, P/N 12077192, for the rear speakers. Route the harness as shown in the illustration diagram.

Procedure:

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1. Remove glove box, radio trim bezel and radio.

2. Install rear speaker jumper harness. (Route harness above black I/P pad so it won't rattle on glove box) .

3. Re-install radio trim bezel and glove box.

The original harness connectors should be taped or tucked back into the I/P.

Labor Operations Number: T1223

Labor Time: .4 Hours

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.