Hey man, i need to ask you about the grounding of a pioneer headunit. My headunit whines horribly and everything is setup right. What is the step by step instructions u keep telling every1 about grounding it through the RCA cables?
Take a piece of wire and connect one end to the outer ring part of the RCA connector, and connect the other end to the metal case of the HU. Do that for both RCA connectors.