We had a unit at a show turn on randomly. Was wondering the same thing. I'd contact Bigfoot/Quadra on that one. They're better equipped to troubleshoot that issue and give you some direction. I never followed up to see what we ended up doing or what caused it.
PLEASE do not send questions via Private Message, my inbox fills up too quickly. Post questions in the forum as a new thread so that other users can benefit from the answers. Use Private Messages for sensitive information only (VIN, Contact info or things you do not want the public to see).