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Bad Bose Head Unit or Amp?

2K views 2 replies 2 participants last post by  Benzonline 
#1 ·
Gents

1999 C280 with Bose system. For several years the system has been acting up, usually after a soaking rain if the car was parked outside. Symptoms started as buzzing in rear speakers but deteriorated over time: no sound in rear, then no sound on right side, then only sound is front left, then no sound at all for a few weeks, then sound back in the front only. The last condition lasted for about a year until a recent storm left me with no sound at all.

The head unit was replaced around '03 or '04 with a stock unit. Not sure if Alpine or Beckers is the OEM. The head seems to operate correctly, all functions on the display, tape deck opens and closes, etc.

Not sure if the problem is in the head unit or the amp. Any ideas about diagnosing?


I pulled the amp from the trunk P/N 202 820 30 89. Can I take it to a local shop to get checked out to see if it works?
 
#2 ·
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