Hi all, trying the fit one of these system, I need to connect a wire to a speed signal? Also a handbrake signal and a reverse signal and a illumination signal? Lol can any help it's for a octy vrs

You can get the illumination signal from the cig lighter socket bulb circuit. The handbrake signal can just be an earth as this will fool the electronics to think the handbrake is on and the speed signal will have to be the speedo.