You will have to prove whether it`s the actual radio that is faulty or the connection from the dashboard to the speakers.. If possible, I would find a substitute radio, insert it and if all 4 speakers then work , it means your original radio is faulty. However , if the fault persists, then the problem will be from the plug-in socket at the rear of the dashboard casing to the speakers. A useful starting point (providing you have the radio code) is to extract the radio fully from its housing , then push it back fully to see if that makes a difference. This will assume that the fault is in the connection/socket at the rear. If the fault persists, then it might be an output problem in the radio . This could be repaired ...but it might be cheaper to buy another off Ebay or elsewhere...Good Luck
RegWorts, April 2008
