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1. There is an audible distortion at a low
volume level.
PROBLEM
POSSIBLE CAUSE
• Output levels NOT set correctly.
• Crossover frequencies NOT set correctly.
• Check for shorts on the speaker leads.
2. A whining sound can be heard through the
speakers when the audio system is at low
volume with the engine running. The whining
noise remains unchanged or seems to
disappear when the volume level is
increased.
3. There is a "motor boating" type of sound
when the engine is running and the audio
system volume is set at a reasonably high
level.
• Check the red power wire. It muse be
connected directly to the battery.
• Check the system's ground point It muse
make good contact with chassis ground
(bare metal).
• The radio and the CROSSOVER must be
grounded at the same reference point.
• Check the red power wire. It must be
connected directly to the battery.
• Check the system's ground point. It must
make good contact with chassis ground
(bare metal).
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TBOUBLE SHOOTING GUIDE
4. High squeal noise from speakers • This is almost always caused by a poorly -
grounded RCA patch cord.