Alrighty then, well... I own a 1988 Mustang GT and I might be doing my own audio install on it. I have ordered Infinity Reference (2-ways) all around, and a Legacy 600x2 Watt Amp. I will be using a Rockford Fosgate RFX9210 Head Unit and running new speaker wire all around. The questions I have are as follows: First off, this head unit has no RCA's on it, but it has 2 areas for pin connectors. I've done some research and I assume that I have to get some sort of pin connector that has RCA's on it, but I can't find this *ANYWHERE*. Where could I find this part, if it exhists? My next question is, if I find that RCA plugin, do I still need to get a wiring harness? If so why? (To power the head unit? To power the Amp?).... Thanks in advance everyone! Sorry if I sound retarded, this is my first full install.