I have been experiencing a little problem with a Jensen MP5010K head unit. It is hooked up to the the car speakers in a standard fashion and to a subwoofer through an amplifier. Since a week ago, the head unit has started to give some trouble. For some unknown reason, it would go from playing good to playing only through the sub for a while. Eventually (after a few hours) it would just go back to normal and sound would come through all the speakers. It would stay normal for a while and then go back to just sound through the sub.
What could be the cause of a problem like this? Is this a result of a short somewhere? Does this mean that the head unit is starting to go downhill? I have had it for about 16 months now and it has always been working fine until this problem.
Please help. It's frustrating to drive without good sounds.
It might be going bad, especially due to the somewhat bad build quality (It's a Jensen). But I would check all speaker connections before going any further.