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AV-356 < SYMPTOM DIAGNOSIS > [NAVIGATION WITH BOSE] MULTI AV SYSTEM Noise is mixed with audio. Noise comes out from all speakers. • Malfunction in AV control unit. • Malfunction in Bose speaker amp. Replace Bose speaker amp. Refer to 372, "Removal and Installation" Noise comes out only from a certain speak- • Poor connector connection of speaker. AV control unit and Bose speaker amp. - (front tweeter). - (center speaker). - (front door speaker). - (rear door speaker). - (sub- woofer). • Sound signal circuit malfunction between Bose speaker amp. and speaker. - (front tweeter). - (center speaker). - (front door speaker). - (rear door speaker). - (sub- woofer). • Malfunction in speaker. Refer to: - AV-373, "Removal and Installation" tweeter). - AV-375, "Removal and Installation" (cen- ter speaker). - AV-374, "Removal and Installation" door speaker). - AV-376, "Removal and Installation" (rear door speaker). - AV-377, "Removal and Installation" (sub- woofer). • Malfunction in AV control unit. • Malfunction in Bose speaker amp. Replace Bose speaker amp. Refer to 372, "Removal and Installation" Noise is mixed with radio only (when the ve- Poor connector connection of antenna or . No radio reception or poor reception. • Other audio sounds are normal. poor reception is caused even after mov- • Antenna amp. ON signal circuit malfunc- • Poor connector connection of antenna or Symptoms Check items Probable malfunction location |