Sup guys, I'm installing a sub and amp in my 2004 crossfire but not upgrading the radio. I'm not looking for anything crazy with my system so I just bought a small amp and 10in sub. Nothing special. Anyways, I'm needing to install a line output converter so that I can hook up the RCA cables from the amp to the stock radio. It's telling me that I need to splice into the right speaker output and the left speaker output. Only problem is, I have no clue which color is which? Does anyone know which color is which? It would help me out a great deal. Thanks.