Custom Audio Proz is one of the premier Car Audio Installers in San Diego. There are many different car audio shops in San Diego, so what makes Custom Audio Proz stand out. It is our dedication to customer service and overall customer satisfaction. We strive to give great audio performance and price that you can afford. We decided to start a new mobile unit of Custom Audio Proz, in order to accommodate some of our busy customers that cannot be without their car for up to a week.