Test E: Poor Quality/Distorted Sound From All Speakers

PINPOINT TEST E: POOR QUALITY/DISTORTED SOUND FROM ALL SPEAKERS

E1-E8:

E9-E10:

Normal Operation
The radio antenna receives AM and FM radio signals. The radio signals are sent to the audio unit through the radio antenna lead-in cable.

The radio suppression equipment reduces interference transmitted through the speakers by the engine ignition and electrical systems. When installing any new radio suppression equipment components, make sure that a good contact is made at all connections. Remove any paint or dirt from between a component and its ground. Tighten all connectors and screws securely according to torque specifications.

Possible Causes
- Antenna
- Antenna cable(s)
- Radio frequency interference suppression equipment
- Audio unit