Audio - Speakers Cracking and Hissing
86BMW07GROUP 65 Radio and Accessories
Bulletin Number 65 02 86 (1197) Page 1 of 1
Montvale, NJ April 1986 Technical Dept.
SUBJECT: Loudspeakers Cutting Out
MODELS: All equipped with BMW Sound System
Complaint: Cracking and hissing is heard through the speakers while radio is in operation. When the volume is turned up, some of the speakers may cut out.
Cause: Improper wiring at the connection on the Sound System amplifier. Pin 4 should have a black wire with brown tracer. Pin 18 should have a brown wire with black tracer. These two wires have been found reversed on the harness side of the 20-pin connector located by the amplifier.
Repair: Remove the two wires from the 20-pin connector using the special puller (P/N 81 24 9 408 087) found in the Electrical Repair Kit #1. Insert the wires into the proper locations.
Warranty
Status: Labor reimbursement under the provisions of the BMW Limited 3 Year/36,000 Mile Warranty.
Defect code: 65 12 32 79 00
Labor operation: 65 10 009
Labor allowance: 2 FRU WT