Came here because of the great reviews to have a custom box and amp installed from a previous vehicle. Customer service was off the charts, the work was A++ quality. Everybody I talked too from the owner to the guru of installs over there were top shelf very professional and pleasant. I was scared because I have been to several places where after install my bumper and paint was all scratched up from them dragging cords, speaker boxes and equipment over top of the bumper. Arrive early one time and saw it with my own eyes. So I started to do the installs myself. I am new to the area so didnt have any friends to help me but fortunately I went with my instincts this time.When you buy as many cars as I have over the years that are somewhat expensive and you love loud music you want to be able to leave your car and get it back the way you left it. I would reccomend them to anybody and I'm kinda hard to please and I am laid back but when I see something that is jacked up, the irritation comes out. Anyway Sun Valley is A1 in my book. They have a new customer as long as I am living in AZ. Real talk no bullshit. Prices are legit as well!!!!