Make sure you are using the correct impedance speakers and the speaker wires aren't grounded to the chassis in any way. If you are running more than one speaker per channel, make sure they aren't in parallel. If only running 1 speaker per channel, then it's likely a faultu speaker or grounded connection.
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Make sure you are using the correct impedance speakers and the speaker wires aren't grounded to the chassis in any way. If you are running more than one speaker per channel, make sure they aren't in parallel. If only running 1 speaker per channel, then it's likely a faultu speaker or grounded connection.