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The Bose stereo in my 89 C4 is acting up. There is a whining noise from the left front speaker that changes in pitch with the engine RPM. This same speaker also has a continuous snapping sound that also seems to vary in speed with the engine speed. Does anyone know if the problem is with the main amp, the front left speaker amp, or something else? Thanks for your help.
I just started having the same problem with my right front speaker. The sound cuts in and out on its own to that speaker. I disconnected the two wires to that speaker to avoid the buzzing noise. I tried to find a replacement amp and speaker but have had no luck yet. ANYONE GOT ONE FOR SALE?