Certified Sounds No ka 'oi.
Certified Sounds is a top notch aftermarket installer of stereo components and auto security systems. I've had two vehicles upgraded by them, alarm and stereo. Their service was professional, workmanship was excellent, and they stand by their products and work with good warranties. Derek offers great, practical advice and strives to meet each customers budget while performing quality work. Certified Sounds is one of my top choices for doing aftermarket work.