问：广播有时只能工作

You have an intermittent "open" in the circuit somewhere. The possibilities range from a faulty volume control function on the radio to a loose connection at the back of the radio to the speaker outputs. If you desire a diagnostic of the issue and a repair, once the repair options are set out for you (principally repair of the circuit or, in the case of a faulty radio, installation of a new versus a used radio) please request acar radio malfunction diagnostic. If you request that service, the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.