Quote:
Originally Posted by TwoFour
do I just splice the rcas together? I don't get it
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Pretty much. Cut the plugs off the cable, leaving a couple inches. When you strip the wire you'll see two conductors for each plug. Strip them back and twist them together. Doing this you are shorting the inputs of the amplifier. After you do this, and if it still makes noise, than the issue is amp related.
I'm thinking if you've swapped amps around and the noise is still there, than your headunit may be the culprit. Whatever happened to the previous amp (or the amp may actually not have been bad), could have fried the RCA outs and you wouldn't hear it through the speaker outputs.