I was referred to Gold Star Audio by Lamborghini of Orange County. I just got a new 2007 Lamborghini Gallardo, and let's just say, the stock stereo on that car is TERRIBLE. I took my car to Jay (great guy by the way) who is the manager to add a subwoofer, and replace all factory speakers + added aftermarket amps. The wiring was on spot, and I got my car back spotless, honestly, factory feel for the installation.
Pros: Knowledgable staff, CLEAN INSTALL BAY, great products, great pricing.
Cons: My wife couldn't get me out of the place, made best freinds with the manager Jay!