DenaliAudio

**New to the board, waiting for my Z2 to show up in the mail...** That would work for someone who doesn't have a backup camera, but use in tunnels would also be a problem, the speedsense wire is important to keep updated directions while out of sight of the satellite... I know it has the gyro, but having not used the system before does the gyro do that much for guidance positioning while no speedsense wire is connected?