Question about MA Audio HK4000D Car Audio Amplifier
The protection light comes on when a wire is crossed, shorted, loose, etc. Check your wires, and then double check them, at the amp, and from the head unit, you may have a short or loose connection. If you have any kind of Y adapter on your RCA cables, this could also cause this problem.
It could also mean your amp is dead. If this is the case, get it serviced.
Posted on Jul 14, 2010
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Posted on Jan 02, 2017
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