TwiztedRolla 10+ year member
Junior Member
A friend of mine recently got two subs and an amp as a gift. He doesn't want to change his stock head unit right now, and it doesn't have RCA jacks. We tapped into the wires from the back of the head unit that work with the rear speakers, and used some RCA jacks we bought from RadioShack. For the Remote wire, we tapped into the cigarette lighter. With everything connected, we turn the car on, and there's no sound coming from any of the speakers. When we disconnect the RCAs, the sound returns, and then when we reconnect the RCAs, the subs start working. We found out that the cigarette lighter is always powered, so what do we need to tap for a remote wire and what is causing the speakers not to play when we first start the car?? Any help is greatly appreciated.