STEP 2. Check that noise appear when the radio switch is turned on while the vehicle is stopped and the radio is tapped while tuned away from a station.
NOTE: Static electricity noise: Body static electric from the shock absorber rubber bushings used to prevent vibration, tires, etc. occurs because of separation from the earth, causing a buzzing noise. Since no measures can be taken to discharge the static electricity of the vehicle body. Check that there is no noise.
Q: Does noise appear when the radio switch is turned on while the vehicle is stopped and the radio is tapped while tuned away from a station?
YES:
Go to Step 3.
NO: It may be static electricity noise.
STEP 4. Check by replacing the radio and tape or CD player.
Q: Are operations normal when using another radio and tape or CD player?
YES:
Either repair or replace the radio and tape or CD player. Check that there is no noise.NO: Either repair or replace the antenna assembly. Check that there is no noise.