Audio System Symptom Troubleshooting - Poor AM or FM radio reception or interference (with premium audio system)
  1. Check for continuity by touching one tester probe to the window antenna terminal (A), and move the other tester probe along the antenna wires (for AM reception) or the defogger wire (for FM reception).
Is there continuity in all sections of the antenna?
YES -
Go to Step 7 .
NO -
Repair the window antenna wire. Go to AM/FM Antenna Repair. ■
  1. Disconnect the AM/FM antenna 3P connector.
  1. Turn the ignition switch to ON (II).