Yeah, I've done wiring in quite a few different cars. My 01 Malibu way back when, my friend's 99 Accord (that was fun), my 03 Accord. Now a new project. I guess I'll just take out the old wires.
As for the connector, it's flat and wide with four holes. The wires connected are these: two green, one red, and one black.... or is it five holes with two black??
For all I know, I cannot wire speakers directly to the stereo, but I'm not worried about that right now.