Audio System Symptom Troubleshooting - Auxiliary input sound is low or cannot be heard
  1. Check for continuity between audio unit connector B (20P) according to the table.
    From terminal
    To terminals
    B4 (GRY)
    B3 (WHT), B13 (BLK), B14 (RED)

Is there continuity?
YES -
Short in the wire(s) between audio unit and auxiliary jack assembly. Replace the affected shielded harness.■
NO -
Go to Step 12 .