I have installed in a VR Holden speed alert in a Ford Econovan but cant get it to work properly - I only need the speed alert, nothing else so have not wired up anything other than the battery +ve, ignition and speed sensor wires. The other wires

are unconnected.. I dont have access to a VR User Manual so dont know how to use it properly- As soon as I turn it on it shows 100kmh, and the light comes on and it 'beeps' as soon as I start moving - literally - 5 or 10kph, I have not even got out of second gear. Can anyone help?