[V8] Bose Air Raid Siren

[DasWolfen at aol.com]

In a message dated 1/18/05 2:48:39 AM Eastern Standard Time, cobram at juno.com 
writes:

> Turned on the radio and almost got blasted out of the seat, the most
> god-awful siren like noise came out of the drivers side speaker.  It's
> LOUD, painfully deafening loud.  Radio changes stations etc. but the only
> sound emitted is the siren.  I pulled the radio out of the dash,
> disconnected it, and even when turned on in "safe" mode, the siren comes
> on.  Anyone ever come across this?
> 

 Hopefully you'll forgive me for laughing hard enough to nearly split my gut. 
LOL

 With all the Bose equipped cars I've driven and worked on I've had this 
happen in exactly one car...from one speaker. I was driving John J's sweet 200q20v 
through an empty parking lot when suddenly the right door speaker started 
this incredibly horrid squeal at around 110db!  I nearly drove over a parking 
block! Glad it didnt happen in traffic.

 I never attempted to t/s the amp but my guess is one leg of a transistor  
shorted to a direct ground causing an uncontrolled current situation. 

Keith