Check your amps ground and make sure it has a clean connection to the chasis. If there is paint or any kind of coating where you are trying to ground, use a steel brush to expose the bare metal. Also, make sure you are grounding the amp directly to the chasis and not to another grounded wire.
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Check your amps ground and make sure it has a clean connection to the chasis. If there is paint or any kind of coating where you are trying to ground, use a steel brush to expose the bare metal. Also, make sure you are grounding the amp directly to the chasis and not to another grounded wire.
Hope that helps.