I have an old vovlo 850 1995...we had to jump start the car a couple of days ago and now the radio says off even when we hit the power button can't seem to get back up and running
connections, both ends, both cables, service bulletins say no washers between connection and block. increase surface area of connection face to face contact. Corroded, loose, not maintained or updated makes battery volts low and many issues are cited. Then, charge and test battery and electrical system, charging system, reevaluate.
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