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So I recently bought a em87 magic eye kit of eBay to hook up in my car the only problem is it has two wire we’re the signal is supposed to come in and being very new to this I have no idea how to hook my aux cord up to it I tried to solder left and right rca to them and playing some music but nothing happened I’m sure some of you here might now exactly what I’m doing wrong any help would be great cuz I can’t find any info on how to use this. Thanks in advance