my 89 eldorado has the Bose system speakers/radio. everything works fine, except only the right rear speaker works, and even then, just barely. if i turn the volume all the way up, you cant even listen at a comfortable level. ive heard to either try replacing the radio itself, or the speakers themselves, cause its probably an amp problem. i'm just wondering what i should do next. replace the speakers and see if that is the problem?

its been like this since i got it about a year and a half ago, though sometimes the speaker doesnt work at all, and sometimes its louder or quieter than other days. the radio/cassette player ive had no problems with at all, just the speakers.

 

These systems had capacitor problems. More info at.