Im just gonna stick with the stock headunit right now. I am trying to save up for a D3. Circuit city is installing the stuff tomorrow. The guy said I didn't need an RCA converter, He said that they had some wires that he could splice into something so I wouldn't have to buy the converter. He says if I get an aftermarket headunit he would have to rewire something and would charge $180 to do it since it is a bose system so it would be better to stick with the stock headunit if I plan on upgrading to a D3. He also said if I want to upgrade my components that I would have to get a aftermarket 4 channel amp, Is that true? All he said I needed was the 4 gauge wiring kit and the RCA cables.