i just recently installed my first set of components. not hard at all. wire it up like the previous people said. don't worry about the impedence as it's not going to be an issue. im not an expert but from what i have read and learned turn your gain all the way down. turn your head unit volume up to about 75% of max you would listen to. turn your gain up slowly until you hear distortion and then back off a lil. if you turn your volume up more at any time and you hear distortion, turn your gain down til its gone and make sure your eq levels arent maxed out. i have my eq almost flat. with an amp and good speakers you shouldn't need to mess with your eq too much to get it where you like it.