July 7, 20187 yr My car has an interface, which sends information to the amplifier. Problem no sound from the speakers. How can I check if the interface is sending information to the amplifier. Have been told by different shops, different scenarios. Shop one, amplifier needs to be replaced, not working. Shop two, interface problem. I do have a multi tester. Thank you. Regards Tom
July 11, 20187 yr Author Hi All, it would appear that 3 amplifier circuits are burnt out. Regards Tom
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