Audio Systems: Caddy Catera factory Bose question, front door speaker, catera

Question
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Followup To
Question -
Hello Tom,

I have a 1997 Catera with a factory Bose system that just came out of the body shop. They unplugged the passenger front door speaker during repair. Since then, the radio powers up, I see the stereo indicator come on for the station, but absolutely no sound whatsoever! The CD changer seems to be functioning ok also but no sound at all. I don't even get a "pop" sound when the amp kicks in. I have checked all of the fuses and they seem ok. Is there some "reset" sequence that I need to perform to get the thing working or is it possible that the amp was blown simply by unplugging a speaker?

Thanks a lot

Gerry Bleau
Answer -
Hello Gerry,
In this stereo system each speaker has its own amp inside a small box that the speakers are installed into. The problem may be that a fuse has popped that supplies 12 volts to the speaker amps. If you have a repair book for this vehicle you can look at the wiring diagrams to trace down the no sound problem. Also if you have a volt meter you can test for 12 volts at the door speaker plugs. If you do have the 12 volts at the speaker plug the possibly the stereo has a problem or the plug that runs from the stereo to the speakers may be unplugged.

TOM,
T&D ELECTRONICS
tdeser@zoominternet.net

Tom,

Just wanted to let you know what fixed my "no sound" condition. As I had stated, my car was in the body shop. What I found out was that they had killed the battery to the point where they had to jump start the car. When I heard that I remembered back to a similar situation where I disconnected/reconnected the car battery and it began working. I think the Bose system uses a "soft copy" of the software to control the stereo system. Well... Long story short... too late. Anyway, I dis/reconnected the battery and voila, the radio came to life!!!
You can put that one in your fix database for future reference.

Thanks for your assistance

Gerry Bleau

Answer
Gerry,
Thanks for the info, however I do have notes in my service data about various problems that a dead battery can cause to the stereo. A battery going dead will set a soft code in the stereo to protect the audio outputs from damage due to lower battery voltage. Had you mentioned that the battery went dead at first I could have mentioned to disconnect the battery and reconnect to reset the processor in the stereo.
TOM,
T&D ELECTRONICS
tdeser@zoominternet.net