Talk about knowledgeable! We spoke with Sam about getting an amp/woofer to give a bit more juice to my new car's existing factory stereo. He gave us a few options, showed me how it would look in my car. Showed the differences in price for what your getting with a few models. We picked one out. He gave a written quote that was a great price so we decided to go with it! Installation takes about 3 hours and voila! Got a car with some serious sound. Easy peasie! Highly recommend.