spotke3

I got my avic v700bt installed about a month ago at best buy. Randomly this morning it stopped turning on. No matter what I do, when I turn my car on the headunit will not power on. Is there something I can do at home or should I just bring it into Best Buy? It also always said that "System Detected an error in the installation of the parking brake lead," or something to that effect, but Best Buy said to ignore it. Thanks