How do these work? to my understanding they plug into the rca cables on a radio and then the other end plugs into a mp3 player.
Does any one use one that can give feedback, and what are some good companys that make them? This will be going into a alpine radio and don't want to spend the $250 on the alpine specific one.
Does any one use one that can give feedback, and what are some good companys that make them? This will be going into a alpine radio and don't want to spend the $250 on the alpine specific one.
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