i'm basing my answer on my experience. I would say $200-300. it all depends where you go. i got quoted at best buy. They wanted $50-70 per pair of speakers, $65 for the amp, and $30 for each woofer. I thought that was insane! I was just going to be lazy, but decided to just install myself. Besides, I know i did a better job anyway loI. im sure there are cheaper places.. just gotta look around.