I hope I am in the right forum, but here goes anyhow. I bought a house in November and now that I finally unloaded my other home, I have the finanaces to get into the updating the home audio system. The system is already zoned, but it was wired in 1989. Speakers are in our master, office, kitchen, dining room and outside. I have a reciever(pioneer) to power this, but upon inspecting the exisiting wiring, it was 4 wire- white, black, red, green. I assume, white and black are +, red and green -, but need some confirmation. Also, the volume switches are old as well and I am making an assumption, they are dated as well and need replacing. So, I am asking, how to hook up the speakers- as in what connections to make. And also, what switches to use for volume control to interact with modern equipment? I guess I should also ask about touch screens and if they could be integrated at this point or if I am looking at a total reqire for that technology? Thanks in advance.