M mosen New member Sep 5, 2010 #1 ...few days ag? The speaker is knocking even when the radio is off. Does any one know if it is related to the amplifier, or it has a loose grounding or any thing else?
...few days ag? The speaker is knocking even when the radio is off. Does any one know if it is related to the amplifier, or it has a loose grounding or any thing else?
