01-22-2014, 06:53 PM
When it is playing, with a medium-light-to-heavy long insulating object (colloquially called a "stick") start lightly tapping with it on everyhing that is suspicious: start from teh wires you moved why taking out the speaker and the objects they go to, and then everything you can think of. If it is intermittent, it is likely to appear while you are tapping.
If not..well, then wait till next time.
If not..well, then wait till next time.