Jraldi

Hey man, not sure if your still active on this site but I came across your post about converting the RCA's from an aftermarket deck into speaker wire then hooking it to the factory Lexus amp to retain the stock sub. Will I only be using one RCA out, either the left or the right? Being each one has a negative and positive wire or do I use both the left and right and have 4 wires? two pos. ...