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Discussion Starter #1
i am not sure if anyone has had such experience as I am having now with my front speakers:

1. low constant oscillating sound, can be virtualised as sine wave, and low humming sound coming from the front speakers,

2. will happen with either the L or R RCA plug in;

3. will happen even with engine not running;

what had been checked:

1. a spare HU was connected to the existing front amp, same result.

2. a spare RCA was connected to the existing HU to the existing amp, same result.

that leaves the amp and xover not check.

what could be the problems? anyone?

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