Cadillac: Delco-Bose amp, high pitch sound, bose sound system

Question
We found out that we have amp speakers but we only have one speaker workin the other 3 have a high pitch sound so what would cause that to happen? Do I have to replace the other 3 or is the 3 speakers blowen? Really confused on this! Thanks so much, Sheila
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Followup To

Question -
So I could be the fuse then. We had only one speaker workin so I will check the fuse box.
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Followup To

Question -
We have an 1991 cadillac fleetwood with delco bose sound system and it has a bad amp but we dont know where the amp is located in that year of car can you hep me out to where i can find the amp ASAP, Sheila

Answer -
There is NO AMP in a 1991 fleetwood. It has amplified speakers. All it has is some fuses in the underhood fuse panel and a relay in the fuse panel.

Answer -
I can e-mail you a full set of electrical schematics for your radio but you will have to contact me at:

onlineautohelp@msn.com

as pictures are not allowed on this website.

tom

Answer
Do the speakers sound distorted or do they whine ?. The diagnosis depends upon what type of sound that they make.



I can e-mail you a full set of electrical schematics and diagnostic charts to tell and show you how to test to see if the problem is within the radio, a wiring problem or a speaker problem for your radio but you will have to contact me at:

onlineautohelp@msn.com

as pictures are not allowed on this website.

tom