Operation CHARM: Car repair manuals for everyone.

Frontway Noise

Any noise which is brought into the radio system through the antenna. (Noise can be eliminated by unplugging the antenna from the back of the radio.)

Some Causes
^ Poor grounding or missing grounds of the antenna base, the receiver, some electrical components and/or body parts.
^ Damaged or marginal components such as relays, solenoids, switches and electric motors.
^ Something near the antenna coax or corrosion at antenna coax connections.

Solutions
^ Always verify grounding first. If more than one component interferes, a poor ground probably exists.
^ Pinpoint the source: suppress, shield or replace.
^ Reroute noisy wires if necessary.