California Audio was very helpful and knowledgeable about what they do and what they sell, and I feel like their prices are pretty good. I have purchased a bunch of stuff from them--a stereo system, a light bar and alarm system and other things. They installed and it has worked out great. The installers were on time and they kept everything well hidden. Whenever you take stuff apart to look at it, there can be a mess. The installers keep the cables and wires neat and in order--so it's not just a mess.